I'm a huge fan of the indie 2D action game ICEY. In fact, I like the game so much that I want ICEY (the game's main character) to appear in Musume.
I've tried to get in touch with both Fantablade (the game's developer) and XD Network (the game's publisher) to get permission to use ICEY, but so far I've been met with nothing but silence. So, I'm trying a different tack.
That's Suzu on the left (as you know) and ICEY on the right. I'm hoping images like these get the attention of whoever it is that owns ICEY's IP so that I can ask them if it's okay to use her.
By the way, this painting was done by @Xesxus, one of the most underrated manga artists on Twitter. Go give him a follow.