In addition to what WhiteFang and Razosh said, I have to say the following:
- Never add a Fountain of Health and a Fountain of Mana in the same place because that's too unbalanced for a melee game. You'll notice that Blizzard never created a single melee map with these two fountains together for this reason
- Don't put creeps in deep water. If I want to engage a melee battle against them, it's going to be pretty hard
- Never put guards to taverns. This hampers players from summoning a tavern hero as the first hero. Based on my multiplayer experience, several players like to start with a tavern hero, but this becomes impossible if the tavern is guarded
- Some items drops feel underpowered. Take the gold mine creeps for example. Their summed level is 18 but they only drop a scanty level 3 item. Not worth it at all!
I'm sorry but your map doesn't pass the Hive's quality standards so I have to set it to needs fix. For a melee map, you got too many critical issues that must be tweaked before an approval. You should also work on the scenery because it's very empty and it's not attractive to the eye.
Good luck!