Hey HikariTenrai.
I did a paintover of your picture of the girl named apple. Since I can't really critique abstract stuff.
It's not bad, just a few minor things that I noticed.
One is your lines, it's fine to make it sketchy, but you should try to get nice smooth flowing lines. It's particularly noticeable in the hair.
The biggest "flaw" that I see is her right thigh.. where is it?
although it's supposed to be hidden from view, if you look at it, you should be able to at least see the top of it where it connects to the hips.
Lastly I'd just say to study the shapes of human anatomy, you seem to have the basics but some of the forms look to wide, or too blocky, etc...
BUT, I love your paintings man, especially that first one, great colors. maybe you could teach me a thing or two about color theory