I have both and have to disagree that they are compatible. I'm usually ok when minis are slightly different in size or proportion, but these are quite noticeably different. Ironically, the Studio Mad Max, which was always outsized compared to their other minis, looks 'right' with the Mantic stuff, but the Studio not-TWD and their zeds are different enough to look off. Since I began painting the Studio stuff first, that's what I'll finish before I begin on my Mantic minis.