I absolutely love the stylish digital art of Raphael Vicenzi. He is a Belgian artist and a member of Depthcore, an exclusive digital art and media collective. His illustrations are influenced by fashion, street art and graffiti. His work is elegant without being over the top, and are often used to relay a message. A few of his pieces are on Etsy if you want to buy them.
Here's a mixture of some of Hanneke Treffers' ,aka Handiedan, work. There are some drawings and mixed media pieces here, but my favorites are the digital art collages. There's just something very unique and interesting about these pieces. All the elements are carefully placed to create some awesome images.
This is a really cool piece of artwork by Peter Coffin. It was created by stitching together multiple photos with rainbows in them to create a singular swirling rainbow. It's really cool looking at the individual photos and seeing how they fit into the tapestry of the larger design.