I've kept the "containing" shapes strong and graphic so that even if it's seen from a distance, for example on a t-shirt of someone up ahead at Eumundi Market, you get right message - then when you get closer you see the detail of what you're all about.
The cirlces also symbolise "worlds", drums, balls, wheels, didge end-on :)
IMPORTANT re colour: this concept is in black and orange - easy for printing on products, signage, t-shirts. It could be that the orange centre backgrounds could be a graduation from darker at the outside to a lighter yellow/orange in the centre. So a 2-colour version and a CMYK version for full colour print jobs.
I really like this design. Just the drums are not djembe shape. And the flecks coming off the circles i don't really like. Everything else is looking pretty cool.