The way Shiny's eyes poke through her hair is a bit odd, as are her assymetric boobs, and apparenly really tiny hidden feet. I know that way of sitting is traditional in Japan, but keep in mind it's kind of painful if you aren't used to it. Non-shiny has a good silhouette in body and face, but his arms seem as wiggly as they do defined. His nose could be a little more pronounced, too.
This is not to say they're bad. I the design, especially shiny's gloves and grin, and non-shiny's scarf.