And I do realize that's a lot of node noodle so here, library preset ready to apply and replace with your textures (diffuse color, bump map and transparency map):

https://drive.google.com/file/d/1wc8VN1Owkt6e9Ny7FTDz3TKQ5sKB2Jv6/view?usp=sharing

(@ghostship2 if you want to download this and share as a freebie feel free to if you'd like, I thought it should be posted by you if anything because you've come up with the whole logic I used for this variation.)

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Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.