I've played it. Thanks for contributing.
A good first effort.
What was nicely done, was that you don't get too much starting gold or save gold, and the heroes guarding the gold beyond that are quite powerful in comparison to how much you could have trained your creatures up until this point, but doable.
In your level objective you have typo, 'hero
es' needs to be spelled with an 'e'. Also, you gave this map number 206, which is already in use so people might overwrite another map when they want to play yours. Look
here for some free numbers. (Above 1300 is generally save).
For your next map, you could look into the
level script. Currently your level can also be done in for example 'War for the Overworld', but Dungeon Keeper has much more to offer and this is done through the
script. For example you can make heroes attack the player so there's something to do besides waiting for your creatures to train strong enough. If you want some examples take a look at
this map.