but then i notice the firrst picture, the palm is too big.

only the first one is really big, other's are okay.
my 1 palm size also can cover my face.

teh legs... looks too short haha

photoshop it to become longer

personal opinion hehe, dont take it too serious

from what i feel la:
1) hair volume is too much. hair flow is also bit weird.
2) hand palm could be bigger
3) white cloth is weird as if you colour it tight looks... outline looks doesn't
4) leg is too fat for my taste
5) skirt flow is weird. as if no hand covering/ pressing the skirt who come the person fall from this direction and skirt will go "in" like this without hand pressing? some more this kind of skirt should be "fluffy" like maid skirt right?
6) yor style reminds me the korean-japanese manga artist. Kwang-Hyun Kim
7) face is little too wide for my taste. at least the jaw line.
8) knee cap seems poking out? (need lesser pointy shape i think)
9) otherwise you are very very good in colour 

also you need work on "transform" > "wrap" for your stocking texture to make it more 3D. or liquidfy it.

^^Chuunibyou lite