Hello,
Here is one of the character illustrations I did for a client.
I have started using a rough PBR work flow for my 2d illustrations.
For this one I used a different process, just did a very quick sculpt in Zbrush, then export that in marmoset, used few preset materials in marmoset then composite those in photoshop using masking and painting.
Its amazing how fast you can make a character illustration by mixing some techniques.