Not bad, improved quite a bit from the first posts you've in your gallery. Nice~
Also checked out the Valentine but now my head hurts, too much bright red in one pic. It also happened that the character and the background blended in too much :(
It's always a good choice to use very different shades/colors when working with the character and the background like in this one. The bg could be a bit paler to be frank, that would make the atmosphere lighter and more alive but that's only my opinion ^^
Anyway, you're doing nicely so keep it up ^^