3. Quite good, I think it would sound better if it had BGM straight from the word go.
4a. Out of sync as soon as the background music kicks in. Also takes too long using a single track of sounds, make the BGM come in earlier!
4b. Not to be rude, but It hurts my head.
5. Great start
7. Not sure if I like the healer noise
You're doing a great job, these are also my bias opinions so feel free to flame at me all you like, criticism is always good in small doses.
"Sorry poklaying dota2." -Zeecount 2014