Please work on your description, it is lacking [maybe put in some screenshots, give more details about your map, and put the credits on your description as well].
Testing map.
Edit:
Tested your map on Very Easy [by myself], it wasn't very challenging, especially since your items/tomes are cheap to buy. That and Potions cost absolutely nothing.
I tried out the Pirate hero [YAR!!!!], his "hook" ability is very much bugged.
[-] Each of your dummy knives = food
[-] One time i cast it at target area, it hit another unit and the hooks didn't do jack.
[-] It brought back a delicious Abomination corpse.
You are also missing tooltips; Druid, adept caster at nature
Uhmm... yea i herd u likez mudkipz az wellz.
Your missing DISBTNS [Disabled buttons, big green boxes]
Lack of a good Tutorial on your map, i had no idea what i was doing, i was just roaming around the city waiting for waves. New wave! does not help at all =.= .
A wisp is 60 gold but the other builders are 75. Builders are lacking in descriptions.
The pirate spells are not very original, except Anchor but it wasn't an effective spell [didn't stun until after 2 seconds after casting].
I selected the Peasant builder and just massed Arcane Towers ontop eachother, which was hilarious but it could kill Bosses in 3 volleys. [Make them Ground-Pathable in WE]
Very bad terrain. Castle and the area outside of it has no strategic places to build in, its 100% flat. My towers on the outside were WAY out of range of any unit passing by, a big waste of money.
Points: .5 / 5
Review: Un-protect the map first off, its not very impressive, this is something I could do when i'm bored. Put your map here for now, I can tell this is nowhere near done.
http://www.hiveworkshop.com/forums/project-recruitment-256/