I had a lot of fun pushing myself to match the dynamic poses Toby had in mind for Tenna - making him so crazy and expressive was something I couldn't have done without his prompts. He'd draw the faces on afterward too, which really brought Tenna to life!
After I rendered out the individual poses, I'd force the color palette to be limited to just a few shades and then I'd shrink the result down to pixel sized sprites. Like these! I'd tidy them up a little, but they'd really get improved on at the pixel scale by @Clairvoire.