Brainstorm logo (concept)

Sketching around in Illustrator. Some feedback would be highly appreciated!

If you think the main idea works I'm going to refine it and work on the final look (I know there's still a lot to do to make it perfect). Just wanted to wait with that until I've heard your opinions. Thanks in advance!

Edit 25.7.2013: Just posted my refined and probably final version in the dribbble+threadless playoff >>

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