I really like your layout for such a small cabin. 200 sq.' makes it tough. But this is pretty cushie camping.
Some dry storage could be put under the cabin.
On the lofts: I think you'd get a lot better head room by extending them the full width of the cabin. One in the back, (maybe a queen sized matress) and one in the front, (maybe a twin). My truck camper has a queen going over the cab. This is really comfy with lots of width. The head clearence is around three feet. Usable but a real pain. Hard to make bed, getting in and out, rolling around, sitting up, etc.. The Ridge peak would be real nice. Especily with a window.
Like the main floor a lot. Would also be a good layout for the 14x24.