This works at about 0.7-0.1 and I'd recommend any of the checkpoints in the sample images! As for Karl... idk, lmao. The AI has trouble making animals. You could probably inpaint him though! Ghostmix is probably my favorite overall for Poe (at least for closeups), but BlueBoys, AllBoyMix and Nabimix are good too if you tinker with the weights a little!