take what i say with a grain of salt since i have not had much experience in portrait photgraphs
I prefer the black and white version, however I prefer the facial expression in the clour version, did you consider a B&W version of that one? That is one loud top she is wearing
which imo comes across better under B&W.
The image looking thru the reflection in the mirror is a great idea and i really like it, the only gripe for me is she is too small in the photo.
With all that said, the colourful top and the little bit skin showing
conveys the described 'energy and fun' ! so maybe the colour version is the best