@Drunkdestroyer: I finally managed a decent-ish picture for riptide. There's several things I want to work on more in this image later, but hopefully this one will at least be enough your card can start in crucible etc.
(http://imageplay.net/view/m7Gbd91470/riptide)
Things I know need fixed: the sky is just a blank color, the seaweed has no texture, th current needs "defined" better and the water surface needs cleaned up more.
I'm debating if I should add a creature, and if so, which one? Any thoughts?
First off, thank you. To me, it looks really good, even without a creature (although as you put, the sky could look a bit more menacing). I think a creature may make it look slightly too cluttered IMO, it looks good with the current layout.
Unfortunately I'm going away soon, for around a week, but I'll try to make the card when I come back.
Again, thanks for making the image.