What would you change in Heroes of Might and Magic IV?

I would like to suggest adding/changing: - More "realistic" movement for heroes and units during battles! Not just movement in 4 directions... because, for example, it's painful to look at pikemen and horse-like creatures. - More "realistic" spell effects. Because most of them are a pointless waste of mana. *Although, what else is there to spend it on?* - More "realistic" units. Some praying mantises, sea monsters, wasp nests, and dragon-golems seem unnecessary to me... although I would gladly change the appearance of the sea monsters, because a mix of a seal, a sperm whale, and a pangasius is not very inspiring. The same goes for jellyfish. - The exterior and interior of the castles could be more "realistic"... especially the Nature castle.