hell no it isn't! that's for making vibingleaf like art, not a 3d modeling software! and also its definitely not ibs cuz the models 3d. my best guesses are anim8r or paint 3d.
dude he used cinema 4d, and he always uses it for all his 3d stuff. This image is NOT paint, it is dithered 3d render from cinema 4d 3d software. I am asking, why can't vibing leaf give us this model or make it public? Just ask vibing leaf for it.