This is so lovely! The colours; the blue, yellow-cream and pink go so nicely together! The little bob animation and the blink work really well and all in all, it's a very nice avatar! I'm loving her hair, it looks lovely. Very nicely formed.
I would say the following things though... [as always] The BG looks like the pastel gradient in GIMP. Nothing too wrong in that, but I think a pixel rainbow would look nicer (but it'd be hard to dither, I know!) I also kinda wish the rain would fall at an angle and hit off her umbrella and such. Again, tricky. Finally, I'd make your signature a permanent feature, not blinking.