My first map

Here is my first map I made:
[SPOILER]{"height":24,"data":"eNq9ko0KwCAIhL11be//xkP3A5Ysg20eSOWXaCnSGEzPpsQy5CDF9CWFTgzOIHWog/K3Spfl8r4yv48ppqj6Ui5l6DgEPfLsnUGP+tq0mPr1XtEic7my df35XtvEP2ZmIjNfCe0nGQK+","width":19,"dict":[{},{"objs":[{"id":"Lab Emergency Wall"}]},{"objs":[{"id":"lod Ivory Loot"}],"ground":"Arena Dirt"},{"objs":[{"id":"shtrs Ice Adept"}],"ground":"Arena Dirt"},{"objs":[{"id":"Lab Destructible Wall"}],"ground":"Arena Dirt"},{"ground":"Hot Lava"},{"regions":[{"id":"Spawn"}],"ground":"Hot Lava"},{"objs":[{"id":"Lab Emergency Wall"}],"ground":"Hot Lava"}]}[/SPOILER]
I hope you guys like it.