I think I like the shapes in the second tile more, but they both look pretty random. The second tile is too dark though, I think.
In the tiled image, do you see where those lines that make it look tiled are? Zoom in and edit them out, then take the part you edited and cut out a 32x32 piece of it, and that's your new tile. Then put down a block of them and see if you can see any more lines. You can keep doing that and as long as you take a 32x32 square piece out of it, it will tile with itself perfectly, the pattern will just be a little offset.