Polygon Bookstand

So this is my first ever 3d model that I've shared.Here is a modern-polygon bookstand for thin books about (0.5cm in width), I will add some other print profiles for thicker books eventually.This model has a book tolerance of +0.05cm so it fits snug and easy. Please if you do happen to print this, let me know your reviews and thoughts, I'm still new to 3d modeling and I'm always open to suggestions.