I literally had to just stop and stare at this for a moment. The colors are absolutely stunning, and the shape of the dress is really pretty! I also like the added details on the legs and arms and the way it kind of matches the background and still stands out a little bit.
Thanks all. :) @crimsontears3, Haha, I don't actually drag it around. It's possible to use it anyways, even though it's crazy laggy (and almost crashes the computer, at least for me). I just treat it like a stamp tool. Click a bunch of times, wait three minutes for the dots to actually show up, switch colors, rinse, and repeat. Don't believe it's impossible to use the beads because of the lag, because it is. It just takes. Forever.
Fantastic work! I can't use the bead tool even if my life depends on it so I'm always so impressed when people manage to create such beautiful and neat things with it. Her dress is just gorgeous with its shape and the iridescend effect you created.