I was thinking that the first one might make a good tattoo. Well, I mean the general shape - I've never actually seen a tattoo that's made to look like 3d or like it has depth. The cross one might not come off as a tattoo, but the first one could be.
But hey, being an artist takes practice, and for some people it takes study too. I've learned to use Inkscape pretty well. But I don't think I'll ever be an artist. But I still have fun with Inkscape, and I keep on practicing. Maybe someday I'll get there!