Small figure problem

I think I have a mini figure problem.....I have become a figure fanatic. I keep painting more and more. In fact I have so many, they are now on several shelves in a small display case (not just on the model train layout).  Below is just one shelf....

I have been painting figures in different scales, O-scale 42mm, 54mm, 32mm, and large scale 1:20.3.  Historic and fantasy. Below is a small diorama I called "Lunch Time". I created the scene with O-scale (1/48) size figures. The figures come unpainted, and are a pewter like metal. The gent in the middle is a Mackenzie Iron And Steel Railroad figure "Juan eating beans", the gunmen are gaming figures from Reaper Miniatures. https://www.reapermini.com

The single "revolutionary" figure below is 54mm. Comes unpainted raw metal. This figure is produced by Andrea Miniatures. A figure from the Golden West Series "Viva Zapata!" He is approximately 3" tall.

The single miner figure below is 44mm close enough to O-scale. Comes unpainted raw metal. This figure is produced by Reaper Miniatures.   He is approximately 1.25" tall.

Cheers, G