In a Nutshell
For those of you who are in a hurry or who don't want to go into too much detail, I have created this page to give you a quick overview of the differences between male and female faces and the procedures that can feminise masculine features. If you want more detail then please follow the links on the left to the individual features.
Here are an average female and male face to illustrate some of the differences I describe below.

1.  Hairline:
    A feminine hairline is higher in the middle, lower in the corners 
	and has a rounded shape. A masculine hairline is lower in the middle, higher 
	in the corners and has more of a square or "M" shape. Filling the corners of 
	an "M" or square hairline to make it rounded can be achieved with 
	transplants. Cutting and stretching the scalp to fill the corners doesn't 
	generally work and leaves visible scars.
2.  Forehead:
    The masculine forehead usually has a bony ridge running across it 
	at about eyebrow level called brow bossing, It also tends to have vertical 
	ridges either side of the forehead ("temporal ridges") and often has a bump 
	on either side of the upper forehead ("frontal eminences"). The feminine 
	forehead is smoother and flatter with less pronounced ridges and bumps, and 
	it usually has either no bossing, or very little bossing.
3.  Eyebrows:
    The top edge of the eyebrows for both sexes is at about the same 
	height but feminine eyebrows are thinner with the bottom edge of the eyebrow 
	sitting in a higher position. This creates a bigger  gap between the eye and the eyebrow. 
	Plucking along the underside is usually the best way to thin them. Eyebrows 
	usually go a little higher with forehead surgery. It is possible to lift 
	them beyond their natural position with a brow lift, but that can look 
	unnatural and can leave you with a permanently surprised expression if it 
	isn't done carefully.
4.  Eyes:
    Females  typically have larger eyes in proportion to the face, and the eyes have a more  open expression. Female eyes 
	typically also have a little more of a downwards slant from  the outer corners to the inner corners. You can't make the eyes  bigger with surgery, 
	and I advise against surgery to pull the corners up as it can look very 
	unnatural.
5.  Cheeks:
    The  fleshy part or "apple" of feminine cheeks contains more fat than  
	masculine cheeks and is therefore fuller and rounder – masculine cheeks are much  more hollow here. Solid implants can  build up the area under the cheeks or fat can be harvested from  another part of the body and injected into the apple to fix the problem directly. 
	Fat is generally a better option because it carries a much lower risk of 
	complications. Estrogen  usually makes the apple of the cheeks fuller, so 
	give them at least a year to work before you consider cheek enhancement.
6.  Nose:
    The male nose is typically larger than the female nose. From the 
	front, the nose is narrower in females with smaller, less  flared nostrils. In the profile view, the base of the female nose has  more of an upwards angle and has a shorter, more blunt tip than the  male. 
	Various rhinoplasty techniques might be used to feminise a nose, depending 
	on the nature of the masculinities and the patient's own anatomy.
7  Mouth:
    The  female mouth typically sits in a higher position than the male 
	mouth, and when her mouth is open, her upper incisors are more likely to be 
	exposed by a few mm. A lip lift can raise the top lip, shortening the lip to 
	nose distance and exposing more tooth. Feminine lips tend to bulge forwards   a little more than masculine 
	lips as you can see in the profile view. Injectable fillers and soft 
	implants can make the lips fuller. 
8.  Chin:
    The  female chin is usually vertically shorter, narrower and more rounded than the 
	typical male chin.  A masculine chin is more likely to have a square shape 
	and to project forwards just a little more than the typical female chin. The chin can be  made shorter 
	and rounder with surgery. It can also be set back a little but this is 
	generally unnecessary and can make the soft tissues under the chin more 
	slack.
9.  Jaw:
    The  male jaw is usually vertically taller and has squarer corners at 
	the back than the female jaw. However, the width of the jaw relative to the 
	width of the cheeks tends, on average, to be almost exactly the same for 
	both sexes. The jaw can be reduced vertically with surgery, and the corners 
	can be rounded off. It can also be narrowed if you have an excessively wide 
	jaw or would just prefer a narrower one. If the width is due to bone, this 
	can be reduced by working through incisions inside the mouth, and if the 
	width is due to large chewing muscles, these can be reduced safely with 
	botox. However, keep in mind that women who are considered unusually 
	beautiful tend to have relatively wide jaws, so narrowing is not always an 
	advantage. Hormones can reduce the chewing muscles.
10. Adam's apple:
    Men typically have a visible Adam's apple. However, despite what many people believe,  women often have a small but visible Adam's apple too. The 
	Adam's  apple can be surgically reduced and the incision should never be 
	placed in front of the Adam's apple - it should be placed under the chin 
	where the scar is less noticeable. Hormones may make the neck a little  thinner by reducing muscle 
	but I don't have direct proof of that.
11.  Skin:
    Female  skin is paler than male skin in all ethnic groups and has a softer  texture. Male skin is thicker and more oily than female skin.  Hormones soften the skin and may make it more pale.
12.  Beard:
    Males  generally have a beard shadow. The beard can be removed with  electrolysis 
	and/or laser if the hairs are dark.