I actually finished up the quilting and started sewing my binding strips together mere minutes before heading to the hospital to have Rubi. And, I finished binding the thing a few weeks ago, but haven't sat down to put up all these pictures until now. I'm so glad it's done. Now that I can see the whole thing put together... it's not really my favorite, and I would change a lot of things about it if I had the chance to do it again (for example: it's way too busy. Too many different colors and prints), but it was a lot of fun -- especially the quilting (except for the multiple broken walking feet that had to be fixed and then replaced, which slowed the whole process down a TON). I did a boxy spiral-ish quilting around groups of four squares.
I've been practicing different types of binding lately, and decided that the only binding I like is machine binding. It doesn't look as tidy and neat, but I feel like it's a more secure binding and it takes less than half the time.
For the back, I bought a sheet set on clearance at Target and used the flat sheet. That way, it was super cheap, super easy to just whip it out of the package and baste it on the floor, and I now have matching pillow cases and extra fabric to use for other things in his room (maybe curtains?).
Anyways, there it is. A robot quilt. Ready to put on Gabe's bed as soon as he's left the crib.