Lider1, thank you for taking a look at this map! :) Perhaps you didn't read my review carefully enough (or didn't read it at all ;)). The main difficulty for me was that

Andre was unlucky with her skills: after learning water, fire, and air magic, she didn't get earth magic!

Secondly, for very skilled players, this map may seem relatively simple. I didn't claim that it was particularly difficult; it just requires some effort.
Finally, you should also take into account factors such as luck and the initial distribution:

I was lucky to get to the brown resource early on

I was very lucky, of course

And since you found "Epic" so easy to complete, maybe you could help veR with a walkthrough for "Brothers of Mercy and War" or try to complete "Legend of Heroes". ;)
The next map I completed (in the RPG genre) that I'm going to write about is even easier, so I'm warning you in advance: don't waste your time on it. ;)