We (at least I) meant not the graphics, but the design. The picture is one thing, and the design work is another. In Heroes 3, everything wasn't super-beautiful, but the game world was incredibly cohesive and well-integrated. In Heroes 4, the graphics are much better, but the design... and the overall variety in races, heroes, and units... This explains why Heroes 3 is still popular, while Heroes 4 is only slightly popular "by association" with Heroes 3 and 5.
Essentially, everything is good, but the design needs to be improved. Thank you very much for the newsletter!