Fantastic idea and the art looks great, quite professional. I really like these types of games. Definitely something you could build on, but I'm not sure the hexagonal grid is working very well.
Thanks for the feedback. The isometric grid is a bit finnicky to work with at first, but I think it makes the game stand out more opposed to a flat 2D. That being said, I do think that it could benefit more from a 3D renderer.