Your shading seems to be smoother, and your newer skin tone looks more realistic, so to speak. The curve along the cheek in the newer one helps a lot to differentiate the style and give her a rounder look. You now include more details with the ears, too.
I think she's adorable either way, but I really like the details you added to the second version. The shadowing of the hair and dress, as well as the realistic-looking anatomy, make her look even prettier. I'll bet your drawing skills will improve even more in another two years.
It looks realy realy cool but i think she will look 100% better if she dont hav this lipstick on her:/becouse of this lip stick she dont look cute:/ this gurl on left site in my opinion looks like a normal cute child and on the right oh well beter not tell whut i thin on the first time when i see her face becouse only thos lips is freaking bothers me >.< oh and the nail on her hand and feets too>.> But that is only my opinion.
Her face looks so much more defined &really cute that her hair is green, i don't see much of those!^^ I like the purple on her better than red/pink. Her legs+hands improved! And her eyes are so much more softer which gives her an innocent look! Great job.