I realy like the pose and face expression in #1, so it looks a bot milky and White Balance is off. Way to much yellow. Also something bright pink in the bottom left corner is a bit distracting. It is always a good idea to watch what you have on the background. 

#2 I like the composition and framing. I like how those big beautiful eyes stare direct at you. 

#4 I love the idea and the mode of the photo. But the lightening from the bottom would probably be my last choice for anybody. It is usually the least flattering lightening you can have. So it does work for this photo. 

#5 Love the outfit. Looks very lovely agains green.