X.X I'm going to attend art school soon enough so I would normally give a blunt reasoning of what you are good and bad at but I am not sure if what you exactly want to know about your art.
However.. don't get mad but these are some things that you are good at:
+ Faces are in proportion to the size of the given body
+ Eyes are proportional
+ The detail is okay (Could be done a little more)
+ Side views! (Better then me. I hate doing them mainly because I can never find a good side view of a person's face to look at long enough to study.)
Thins you could work on more:
-The hair isn't done to realistically, to make it more realistic you can pull each line out with the paint brush/pencil, it may take a while but it does make it more realistic and attached to the picture.
- The clothing is very rough and slightly unappealing, it can be made better if you soften the colors and use the darker tones for more of a shadow tone. (If you reverse the light to a shadow it makes it more of a dark edgy person that appears wearing the clothing.)
Other then those few things, I liked it. I hate using paint tools and do all mine by hand so I am not sure of how to really help with the computerish details.