Hey there, looks good, I like the simplicity of the terrain. The easter egg is hilarious
The layout is nice, open. There were only two things that bugged me. First, the Goblin Labs are way too far to be worth it. Second, you put most of the stuff too deep into the trees - bases, expos, creep camps... the merc camps don't have much space in between the trees to maneuver. Also, the trees have free space between them (press P for viewing pathing).
Some creep camps have item drops that might be too strong for their level (looking at the level 4 drops). The dragons at the base creep camps are different. Each color of dragons has different stats - armor type, attack type etc., the differences are minor but still might be imbalanced. Same goes for bears (hp), not sure about furbolgs.
The water around the tavern is a nice thing. Breaks the "farm/wisp at the tavern" meta. There's some neat concepts on this map. The red camp placement is interesting too (mostly for HU players

), as it is the nearest camp to the base.