About this 3D model

So, there were a bunch of clips on Thingiverse, but they either weren't parametric to easily customize for my shelving or I didn't like them for aesthetic reasons. So I decided it was time to finally learn SCAD, and whipped this up just barely in time to get a stocking up for Christmas. Please post if you made one and if it worked or if it had problems. I tried to emphasize strength with minimal clip size and plastic use while maintaining easy printability (no overhangs, no holes in z...). Suggestions welcome, I'm no mechanical engineer!