NHF – new heroes for Heroes V 3.1.

Please excuse me, I'm not asking you to do it for me; I'm asking what I should do because I'm facing a problem, and I want to fix it. I can dedicate time to this, but the problem is that I'm new to modding, and when I put all the elements together, it turned out terribly. Please tell me what I did wrong? Why is the horse flying, the bow has a range of 7 tiles from the hero, and the hero himself looks distorted?

PLEASE EXPLAIN, and if there's no way to fix it, help me figure it out. I really want to add this heroine to the game and learn how to create heroes myself.