Gorgeous, but I'd love to see some actual differentiation of form between the various pieces - going to the obvious source of inspiration, sand worms, stillsuits, the rocks of the seitch, and the insect-like forms of the ornithopter all could lend form to the pieces.
The critique and the suggestion I made are not one and the same. The critique is that the design of the pieces are far too similar for this chess set to be comfortable to play. The suggestion is one possible direction in which one could go to rectify the critique (thus the hyphen, and the mention of possible inspiration).