#1 I dont like the flare. it rarely "works" for photos. this one is far to overexposed.
#2 skin tones are poor, overall saturation is too low.
#3 I dont like the composition of this one, crop is too tight, all you see is hair.
#4 I RARELY find selective color to be pleasing, and this one is no exception. this could be an amazing photo. show us the pic in all color, I think it would be wonderful. as is, it looks like a corpse in a forest.