We're looking both for environment tilesets and mobs/characters -- needn't be the same person. We've got a pipeline for MagicaVoxel going but if you've got great work in Qubicle or something else, don't be discouraged from showing us your stuff. Maybe you can change our mind!
Based in London, but we're happy for this to be remote. Ping me portfolio and I can get back to you with the full brief.
You can reach me at [email protected]
or on PM here.
All the best -