I'm genuinely starting to believe that this guy is using AI art somehow. While the works still look hand drawn, the drastic change in style is quite glaring. Some of his early works were normal, 2 look like Kunaboto's, and the most recent 2 (including this one) look like drawn by someone else. I can look past the change in bodytype but the new way he handles the face is ugly and weird. I doubt any artist could and would alter their style so often and so dramatically.
You might be right aby2sal, no expert myself but while the focus is often how people with no art skills are using AI, it is curious to imagine how ai art might be used by people with already available drawing skills.
If I could venture a completely uninformed guess, it might be ai generating a rough image than tracing over before adding finer details, might be why everything is so consistently good but so rapidly different. Even fi no AI is used, clearly they are taking heavy inspiration, which I do not mind because I personally love the final outcome.