The map looks fine, but you have a couple of things that you need to do before I can put it on the servers.
http://imgur.com/a/OX2txHorrible looking cliffs: if you bother making cliffs, make them look alright. Don't stretch out the textures too much and use something more/else then just steppe terrain on them.
The last picture, the lone tower in the middle, I'm not found off. I will see how it goes, but generally having camping spots like that is not good gameplay. I'd suggest you simply remove the tower and let the teams meet in the middle instead. We'll give it a go before deciding anything anyhow.