Just some quicker doodles today; trying the same techniques as below but with quicker monochrome sketches. Using color balance and a few other tricks to stretch that a bit. Nothing special really, didn't even feel like fleshing these out - just playing with shapes. Let's just say, keyword: half-assed.
I do like the limited palette, almost duotone on these - so simple but can be so convincing. Will also need to play with the lone robot and master idea, they can be my anchor in cityscapes perhaps.