Check out this screenshot (Heroes 3 + Photoshop).

The first picture isn't very professional (((... the idea is great, but many details are missing... =);).. maybe I'll experiment in my free time and create something similar =D
The other two... you can also experiment with them =) by collaging and changing some details without changing the overall shapes, etc. =))(but the objects will be in the same places) ;) but it's done well ;)) =D