I agree with others who says tileset is awful. Hmm... Map's shape is good. I recommend you improve and try find better tileset for map and big box in water looking terrible for me. It's okay.
-> Too many trees
-> Tr has 2 approach points and they are both very narrow, gives advantage to CT
-> Too many windows, it's the same as too much open space
-> Flags are too close to spawning points, to get the flag the other team would need to be better by 100*.
It's big. But I hate the tiles, and it doesn't look like a map I myself would play on. It, well. It looks like something I would delete if I had it in my map file.