I hate to be that guy buy um... it's spelled colosseum. The screen shots are very far away. One overall shot is okay, but some more close ups would be nice. It would help if you gave some kind of description of your map too. People usually like to know information about a map before they will download it.
You might want to add a better description because people may not understand the map. Tell 'em how it was made, how long it took to build it, or even tell the details of it! Pictures tell a lot, but when it comes to a good description, nothing can tell more. It also seems you took many shots of the overview of the buildings. Zoom into the buildings and get a couple of shots. Maybe even go inside them and get pics if you have to.
I agree with the last two comments, more discriptions to the pictures. And, like some other maps, im kinda thinking your using the blocks like they would be found in the object menu's.. Maybe switch them usp a little, turn them upside down or somthing...I hate when people say this but it looks a little too "forgey".
it a close to medium ranged map good for slayer team slayer and capture the flag it has anything from sniper nests mongooses to a Colosseum in the middle