I suggest you to upload unprotected map, start protecting them when they reach really high quality, there are still to many errors that need to be improved, we can't show you where you made them cuz we can't check triggers or object editor, even if I de-portect your map part of it be damaged or just lost in process so I can give wrong advices.
You may also want to check map development forum if you already did not.
You can get feedback and upload systems heroes etc etc in demo maps so users can test them and leave feedback.
I will check your map now and post below what I think about it.
EDIT:
Ok let see.
I picked game and saw average map preview and after that average loading screen.
Maybe you can add last change log, hints or some suggestions/info about story/author (you) there.
Post link to this place as well.
I picked normal mode and picked
Wanderer.
Not warcraft icon looks really bad.
Then saw hero spells. Very bad, I expected to see some synergy between them.
You know 1 spell depend on another, one lower resistance another deal magic damage, combined you can do larger damage, 3rd can give chance to critical damage spell so you deal really high damage once when you reach high levels.
I attacked stash, there was no hint so I attacked it for like 5 attacks, after 2 fast right clicks it opened easily. Create hint about it. (Can be displayed when hero come into 400 range of 1st stash).
Then I attacked 1st creep. 25 base attack damage against 250 hp. Grrr, I wasn't able to heal or cast spells at 1st level hero is weak and enemy units are strong. To make things worse enemy creep cast curse on hero so I missed like each 4th attack. Replace that spell with dunno, some passive for example.
Everything else related to gameplay was same, you must create different and unique things, people will get bored after 10 creeps.
Items, grrrr there was no items buddy, few potions and that's it. Big mistake, check games like Diablo, items are everything.
Terrain, terrain was boring honestly I expected much.
Add fog effects, lightning effects. Create cliffs without bottoms. Resize mushrooms a little, all are same grrrr.
Create dummy unit, add locust to it, resize shadow to 400x400 and place few inside caves to create awesome dark lightning or should I say shadow.
Add rocks (remove pathing ground and set max size to 2.00), it will look awesome.
Open map properties window, check fog, check lightning, set it to underground (will increase terrain quality by 100% for sure) or maybe dungeon (50% cuz dungeon lightning look bad to me, 2 much red).
Add spell/damage text show systems (2 triggers with 10 lines of code).
Check my hero pick system (link in signature) it will work perfectly fine for your single player map

Damn dude 2 much thing to show you, 2 much things you need to learn.
I will leave this map as it is, still I will check process and hope to see some change, once when it reach acceptable quality I will approve it.
Thanks for your time and have a nice day.