Beholder Lair With Drider v Heroes

I made a beholder, such a classic DnD monster. It has a drider thrall to help protect it, another classic monster, especially when thinking of drow. 4 heroes are coming to the beholder's lair to destroy it. I included the 4 classic heroes, a wizard, halfling thief, elven archer, and dwarf warrior. If parted well this can create a lot of variability. I have them in a cave setting-here a modified Erebor as this is what I have, but would like a different, darker cave. I really like the framing for the beholder though. 

The beholder does have a stand as it can be lifted and helps for balance even when on the flatter surface.

For the pictures we did have to change the drider background due to the darker colors.