Defense TD

Hi, I am new to the mapping community and want to see how my map stands up. My current map is Defense TD and is available at:

http://epicwar.com/maps/56218/

(i dont know how to post here...)

Please keep in mind it is a beta version and there is only 6 towers, 10 units and 30 waves.

overview: In a nutshell, initally build towers to defend the town
If the units leak, you must build units to defend the town
If the castle falls you lose.