Very cool tumbler. You are obviously a skilled fabricator and should be proud of the unit you made.
With that being said, there is "clean" brass...and there is "shiny" brass.
You owe it to your dies and the chamber of your gun to shoot clean brass. Shiny brass is 99% cosmetics. Sparkling primer pockets or insides of cases have absolutely nothing to do with function or accuracy of a cartridge or firearm. Shiny brass make people feel warm n' fuzzy inside.
Reload long enough and it becomes readily apparent that "clean" is really all you need. YMMV