Here's another Patreon reward from , of Jakob in full Johan Cross mode. During those years when he went off the rails and ruled his realm with an iron fist, he tended to keep changing his appearance so that only his closest advisors knew what he really looked like. This mode, blue hair and paler fur, is the appearance he tended to use when executing criminals.
These days, he tends to use it as a Hallows Eve costume.
As usual, I'll link to Keetah's (higher res) version when she posts it on FA.