I guess I mean more specifically for a single image size and/or dimension. Would there also be a limit on how many images you can put into an update?
EDIT: Well, me and @kaetana had the idea (more her idea than mine, but yeah) to do a little test of how much Tapas would let you upload for images on a novel, and uh, here's what we found. There is an overall size limit! It's roughly around 1.4 MB. It ain't much, but it's a few decent pictures worth at least, it's certainly enough for the both of us and what we're trying to do. But yeah, what do you guys think?