One of my favorite corners of the Internet is Project: Rooftop, where artists redesign their favorite superheroes and try their hand at caped costume design. Randy Bishop is a frequent participant in redesign and fanart challenges at P:R and other art sites, which is good practice for his own project, which involves reimagining gods and mythical creatures from all over the world.

Bishop is currently collaborating on a comic (still in development) called Monomyth, which involves beings from Greco-Roman myths, as well as creatures not immortalized in marble statues:

He has also drawn plenty of fanart, for redesign challenges and just for fun:

Bishop has tons more art over on his blog and sells prints (and custom avatars) at his Etsy shop. And, if you're interested in digital painting, he has a handful of timelapse and tutorial videos on his YouTube channel.