Those are really amazing mock ups but two things:

#1 The planet Geonosis with an asteroid ring around a blue atmosphere. I think the idea was to have the scape look more like Mars which have rich iron deposits so the Geonosians were using it's planet's raw metals that are plentiful for the creation of heaps of battle droids.

#2 The Geronosians would need to be a dark bluish color rather than brownish red because evolution wise it would be a form of their natural adaptive camouflage especially if it's an insect species... Biologically speaking...