looks good.. just few things imo needs to be taken into consideration..
1- the psds need more blending.
2- add shadow and light (hence its cartoonish, so make the psds have some "pink" light or "gold" light).
3- the maron tag is good, but i think you need to add something in that maron. Maybe have faint scanlines/ or dotted lines. Or a sign of the cartoon logo (but in very small size).
4- Try add some japanese letters in the bkg just to complete the theme.