New Shimeji

Okay, so I've noticed that multiple people would like a shimeji of Koichi from MEJIBRAY, so I decided that I would make one. I need some help with the 'special' frames though (if I can't figure out what to do for those I might not continue to make it). :/ Not sure what I should do with them since I don't know anything about Koichi except for he plays the bass. ._. So if any of you have any ideas for what he could be doing in those frames please share them. D: It would help a lot. Thanks!