very nice work, sir.
the hair are incredibly beautiful, seriously, the hair have incredible detail on them!
the eyes are also very beautiful, and nice, they seem pretty captivating, and interesting.
the nose is OK, pretty cool, but the lips should be a bit fuller (bigger, but just slightly. also maybe more red on the lips?)
other than that, your first portrait is an excellent portrait. you are good.
in the future, you should always maintain the same detail on the hair like in this, and do the eyes as good as this one, and in the next drawings try to experiment with different face expressions, or poses of a character, it will be interesting to watch.
also, try adding different shades in faces, and stuff. that always helps to create more different stuff.

i wonder, who is she?
she looks like katty perry.

you did a nice work, man, you are good. do more!

Sims 3 art eh?

I really love the hair, everything looks fine, for a first time portrait is a really good start, I think that's your thing now ^^

nice details on her hair, really good!
just one little thing: you seem to be going for the realistic style, so i'd recommend some more practise of the face, proportions, and skin. Her right eye is a bit higher than the other eye.
overall, fantastic job and keep it up man!

You're pretty good at hair but nose and lips could improve