This map is incredibly bumpy. The space is very little. Here is some proof:
http://prntscr.com/g17se8http://prntscr.com/g17sh3http://prntscr.com/g17sk0http://prntscr.com/g17so3http://prntscr.com/g17sqthttp://prntscr.com/g17su2http://prntscr.com/g17sxbhttp://prntscr.com/g17t8nhttp://prntscr.com/g17tfohttp://prntscr.com/g17tirI'm assuming in COOP mode, 95% of the fights will happen in this small chokepoint. Not a very good strategic map, same strategy every time, will get boring.
http://prntscr.com/g17tpvI would give it a solid 2 stars. The wall placement is incredibly annoying. Also, do not even ask staff members to approve it. That is listed as a violation, and they will never approve any of your maps ever, if you do that.
But I appreciate the effort you put into this map, and the background design as well as the water feature is nice. I will give you a 4/5 stars.