@GeoLigar has a bunch of characters he's drawn over the years and is looking to get around to drawing more in the future soon. I recently commissioned art of one of his characters to help him out. My favorite of his, Sunny 'Yo-Yo' Fujiwara, I wanted to draw for myself though, even went through two false starts it's been in the cards for a long time.
The other two musicians are one-off designs by me, Geo has his own plans for how he wants to do Yo-yo's band. The drummer is close to how I originally sketched and planned this out, I made her a giant one-man-band when I revised plans. The singer was originally a thick glam rock guitarist which I may revive in some form later.
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