Creating Transparent Typographic Garments: nanobanana Ver1.2 Guide

I've been exploring ways to increase accuracy for the clothes-to-text transparency thing on nanobanana other than Hailuo. It seems extracting the clothing color and replacing it with text color is quite difficult, so it's tedious but I found specifying the clothing color with color codes improved accuracy. However, it doesn't seem to make the body transparent, so it ends up with text on bare skin. With the free nanobanana, I got 2 errors as shown in the attachment, so I could only run it 3 times, but 2 were successful. I'll post the Ver1.2 Prompt in the comments. Please test if it works properly. You can change the text color and YOUR TEXT. Hope it works properly.