The locust and ash are the same process, the natural green color of locust reacts with the red and blue to dilute the contrast compared to no green influence of the ash. The ash reflects more light giving a greater color change effect. Just getting started with blues and have a few ideas for the next one.Neat looking lamps! While maple is always great and that blue is wonderful, that locust really jumps out at me. Don't know what you'd call that color, but I really like it, maybe a red bronze? I assume the ash has the same colors applied, but the purple bands are a little too prominent for my preference.