Sure there are all sorts of edible flowers but have you actually eaten them? I have, they taste like, well, like flowers. Wouldn't you rather eat something that looked like a flower but tasted sweet? Of course you would.
What a lump of cuteness! Slap a kawaii face on an amorphous blob and I'll melt. I'm such a softie. Honestly, this could be a marshmallow, just a cylinder of puffy sugar, and I would still coo over it. Also, I think this cake would be an adorable hat. It would have to be about 4 inches across and have a pretty ribbon to tie it on. I'd wear it every day.