RTF is a global modification that replaces all towns in the game.

well, uh... ahem... how to put it...
it's like this...
maybe you just haven't finished working on it, or maybe I messed something up, but in general...
the creatures haven't been changed at all...
instead of Mountain Orcs, there are regular Gnomes...
and the Sanctuary and Lizardfolk have the same castle, which lacks building animation...
the heroes are a bit of a mess; the Dark Gnomes have a hero from the Mages, and the Conflux has a hero from the Demons, and with the Demons' passive ability, it won't affect the gameplay at all...
and regarding the Chimera Mages, well, this is just my personal opinion, but the castle... okay, even if you leave the texture as is and just tolerate it, at least change the background in build mode, because it looks like a "diamond or crystal" castle, but the background is a cave...