I made a few mistakes, and the thread the kit came with ran out about halfway through, so I had to switch to a thread of a slightly darker hue (notice the color change). All in all though, I'm happy with how it turned out.
Now I have to decide if I want to fill in the blank spaces with cross-stitch of a contrast color. I'm kind of leaning against it, because I don't want there to be too much thread on the back of the case so that it doesn't fit the phone properly.
Here is the pattern from Connect Design I used (different colors, of course):