If you have complete control of the pipeline you could consider worley's algorithm. It;s labor intensive but pretty much a silver bullet for tiling issues.
Had an itch to paint something so this is a stab at the weekly challenge held over on cubebrush http://cubebrush.com/forums/topic/silver-weekly-challenge-081514/
I agree^. Maybe try for something like this? i feel like the sky is the limit with this kind of design direction. Spice it up with a little silver trim and bam!
Great job! It would be amazing to see a Venasaur and Charizard to go with this, oh and like every other first generation pokemon. Maybe Gold and Silver too. haha