Hi, as another photographer I can't answer the second part of your question but for the first part I thought the very first image on the first row was a little confused. The shadows on the face were quite strong and in the absence of catch lights in the eye the face isn't particularly flattering. It also looks a little cold to me (skin tones) and the crop on the arm seems strange (kinda running down the length of the arm).
Your choice of avi is a good one, of all the images that stood out, that one won the day for me. It's whimsical and creative, has a natural feel to it and comes across very well.