very well job
let me tell u some mistakes u have made if u don't mind
sasuke : the hair is way to big than it must be , the eyes and nose are perfect , though the face doesn't fit the eyes and nose space , always keep in mind the chin must be vertical to the eyes and nose , i love the shading of the nose so much
naruto 1 : is just perfect
naruto 2 :the eyes are not in a stable vision , you should have considered the nose space between the eyes and again nose eyes and mouth must be vertical to the chin
gaara : hair and ear are perfect though the chin and by some way doesn't fit the face , the mouth is perfect i like it
I hope my advises may help u in your future art you are very talented keep going
