The only place I can think of that hasn't already been mentioned is carbonmade.com. It's a website that offers a really easy way to set up an online portfolio. I think the free option lets you showcase up to 40 pieces or so. If you need an example, here's mine: aprilbridges.carbonmade.com/ Just to give you an idea if it's something you'd like to use or not. I use it to display a small portion of my stuff (photography & graphic design) and then link to my full portfolio in the "About" section.
This is my favorite of your art, btw! I love the vibe that's going on throughout it and the colors complement the mood perfectly. You have some amazing talent.
—and the bravest of faces are the ones where we fake it. ♪