It's way way way too empty and open. It's like short but really wide and I don't seem to find any playable defensive spots except the cage. I don't really like all those stamina pads and it's too symmetric, it really looks like a battle map. Some additional stuff, I would change the attacker's spawn and put the one that's in the middle of 2 blocks to put it at the center of the wood ramp. Also, there is flickering blockmixing near the defensive spawn, against the rules
What I would do is have it less symmetric, add some spots, and some decoration outside the map.
I still think you can work on it =DD