I like the painting effect you were able to give it!
Wouldn't I love to have my characters proportioned realistically. Well, if your problem is the opposite, then I can relate to you (in some really twisted way).
I do that too! What's the name of the bag? In Spanish it's "Cangurera", but I have no idea in english. Must be similar, as you associated it with a Kangaroo. I do carry my little bag around my waist all the time: it's practical, it's comfortable, and it's completely masculine (so long as you are not a Kangaroo, that is).
I believe the bags are called fanny packs in English. The association actually came when I was thinking (while wearing my own fanny pack) of how fanny packs work like kangaroo pouches, then I imagined a kangaroo with a fanny pack, then I thought two "bags" on a belly would be pretty useless so I made him a male and got this idea.