Right now you are relying on surface details to distinguish the images.
If you want to keep the same size there are other ways to show change.
Change in color is recognizable at almost any size:
Motion is also easily readable and makes each state more unique:
A couple other options:
1. If you want to keep him a single color you could make each step go down in saturation.
2. If you only want static images you could change his form, by having him deflate or melt.
« Last Edit: April 16, 2012, 06:43:08 am by PixelPiledriver »
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And knowing that it is, we seek what it is... ~ Aristotle, Posterior Analytics, Chapter 1