I don't understand what this is. Has he modded Homm2 to look like Homm3 or is he using Homm3 to play Homm2 scenarios or ... ?
It looks like HoMM3 modded to impersonate HoMM2.
The Mage Guild looks weird now, in HoMM3 it has at least the background, this is just a bunch of scrolls here and there.
Pretty much it is a bastard child of those two games. IMO meh.