We're looking at the houses pretty straight on in this view, and there are no plane changes, since they're round, so it's more difficult for the viewer to find a point of reference for the perspective. Maybe changing the point of view, moving it either up or down so that we see the top plane or the bottom plane of the houses, or adding something more cube like in shape will help with the flatness! I really like your idea here, keep iterating on this!

fixed after watching critique video!

Hey @pinkfin. Nice work 👍 15 does feel a bit off, but it seems to be angled in the right direction. It might be because the side plane doesn't go back far enough. It looks like the side plane is the front plane because of the proportions.