My first suggestion is to move the "Origin" tab to the very end, on the right side of the "Abilities" tab.
This adjustment seems that it would be more intuitive and closer to how you actually build your character on a character sheet in a D&D game. I have made 2 characters so far that were named Tav, and have the Acolyte background completely on accident. It was certainly my fault, but in my option, it makes more sense to create your race and class, before deciding your background.
I think this is a good suggestion. The PHB specifically has the suggested character creation order as Race -> Class -> Ability Scores -> Background, so your suggestion is even consistent with that.
