Sadness in the rain

This work have a story full of troubles XD I have had some problems with the proportions and with the coloration, but in the end this is the final result. Drawn entirely on SAI and with some effects with PS CS, this drawing is a gift for my girlfriend. This is my first time that I drawn a rainy scene and I hope that it is well, this is the most favorite drawing that I made.
Any critique and comment is accepted! I hope that you enjoy it ^__^
See ya!