...CNC

http://stick02.deviantart.com/art/Explosion-375292238?ga_submit_new=10%253A1370119609

That's absolutely awesome, great job!

thanks Spider

The last one is perfect. the other once i think your brush smoothing needs to be a bit higher and less outline. The green one looked more like a plant growing than an explosion.

Somehow I feel that these were rotoscoped
:l