T-shirt design: I'm All Ears

Initial sketches and idea discovery :

 the sketch of how i wanted my final design to look:

 the sketch that i traced over:

but the head wasnt proportional and i needed reference for the brain so i used the following pictures:

and here is the outcome :

after tracing over the brain and head shape traced over the ears part of my sketch

played around with font in the IM ALL font to make it look like sound waves

and made the speakers in illustrator

and just put everything together

i brightened up the colors before printing it 

and thats the final outcome of my t-shirt design :-)