Flutterby™! : I was reading about wood tongue

I was reading about wood tongue drums, and after a bunch of diving into trying to understand the tongue length calculators and guess at the modulus of elasticity of various woods that I had lying around, I said "fuck it", grabbed a piece of cherry and started cutting.

And now I'm really confused. The shorter tongues seem lower pitch than the longer ones, none of it sounds terribly good, and I don't know whether to give up or keep trying things.