I just finished this. I tried painting (digitally) without lineart. Fortunately, for me, it worked. So, regardless of whether or not it looks good, I’m proud of it.
I had a lot of trouble with the face. I didn’t know how to do it without an outline. I then gave up and just used an outline. I fixed the colour a bit and it turned out okay.
I think I’ll use this kind of style for my future artwork. It works for me.