Gee... thanks. Yes, they are pretty ugly, but if you make a map with them, and just do some slight palette edits, they look fantastic. And also, you should only use 2 of the 4 trees per map, or it'd look horrible. I just thought it'd be nice with a choice of 4.
Well, though, you won't be able to see it in-game, that's okay, but seeing an entire map like that just gives lower ratings because of emptiness. You could've lowed the height, so it wouldn't look empty.
Or, if you wanted it to be like that, make sure to fill in space, because people are rating how the overall map looks, not how it would look like in-game. ;P