Sleepy Jungle Critter - Hippo

This is the second in a series of illustrations I'm doing for my friend's nursery which has a jungle theme.

Sketch and Photoshop.

(c)becsketch

See the other sleepy critters here:
[link]

I'm torn whether to leave the series black and white for simplicity sake (the nursery is full of primary colors and has bright yellow walls) or to color them, since, well...it's for a nursery! Thoughts? Thanks!