So far I've dropped pencil sketches into Krita and moved things around to get a composition, and figured out my color palette (keeping it simple).
I'd like to formalize the negative space between the babies and the teats, as there is almost a pattern forming there.
Also, I was screwing around, playing with bezier selection masks and created this rough head, I almost dumped the file but decided to save it, and the next day opened it up, deciding to take it further I ended up with this image of a boy walking a dog (with the dog doing all the walking). It's one of those aimless illustrations that has no real reason to be, but I like the dog leash, being the last detail added.
The right caption in the thought balloon would help bring it together.