For such a small library I must say it is all amazing! I would also greatly appreciate maybe characters from enter the gungeon since your art is heavily based on rogue like games but that is an idea. Apart from that by far one of the best libraries I have seen for a while.

is the thor of castle crashers

Byotiful

Red knight for the win

Your other art is really good, and even this drawing shows a strong understanding of lighting and form. But I think you're susceptible to making shortsighted design choices. The way the hands are lit is less-than-ideal, the composition is questionable and the lightning looks rushed. That said, there are parts about it I really like, like the top of the helmet which I think was well done.