Lovely stuff, they look really good. I did mine on 60 x 30 (Polemos) and I love the way they look.

Thanks! Nice work yourself.
I know that 60mm frontage has become something of a common size at this scale, but I'm interesting in exploring what I can do as tiny dioramas with the larger bases.
Using 50x50mm, 100x50mmm, and 100x100mm for my largest units (tercios, big blobs of cuirassiers).
I've seen some
very cool diorama style bases people have done for Epic 40k - ruined buildings, trees, streams (the Roll A One blog guy has also done streams on his 6mm bases). I want to try my hand at that.