"panterki" w sensie faktury drewna? To już jest kwestia samego drewna, ułożenia słojów. Bo poza tym to tutaj nic się specjalnego nie dzieje - trochę koloru, trochę podszlifować i od nowa :)

Thinking exactly that, I initially made a transparent plexi pickguard for it. But for some reason it didn't look quite right. The black somehow balances the design out IMO, even though it does cover a big part of the swirl

I don't really think you need to keep the guitar under water for any set time, the water is just a medium to transfer the paint onto the body, that's it. Now getting the paint to be absolutely smooth after taking the body out is actually quite tricky. A combination of hairdryer/paper towell can make the surface reasonably clean so that you don't pick anything up on the way out, but the Magic Marble paint that I'm using tends to form a little clumps here and there no matter what I do. And as you say - level sanding won't work since the color layer is so thin you're guaranteed to sand through. The only way I figured out that actually works is to wait until you have enough clearcoat on and then level sand that - you'll go throught the clear where the color formed a clump, but the clear will keep you from sanding through the color at that point. And once you've done that, the body is prefectly level and just needs a few more layers of clear before the final sanding and polshing

Got it. Thx.

"Magic marble", sometimes sold simply as marbling paint

the "magic marble" brand that I used appears to be made by C.KREUL, there's another one by Marabu that I tried and that works similarily

I haven't really had problems with putting Magic Marble over stuff. Here the silver is typical hardware store acrylic automotive paint. Compatibility can be an issue once you go to covering the swirl with clearcoat. You definitely need to do some tests on scrap for that

well at that point it would sound like an electric guitar with a piezo pickup. I use that configuration to get an "acoustic guitar" sound from a solidbody electric without having to switch guitars in the middle of a song for example. Like here: kzbin.info/www/bejne/aabXh2V9j9CDkMksi=2JBsqUWsadpf0En7&t=207 With distortion it sounds similar to a magnetic pickup, but - in short - less "full" in the mids since piezo pickups have much more high end and that drowns out the mids.

by itself it's not very durable, the color layer is very thin. You have to put clearcoat on top, and then the durability depends on the clearcoat. If you put automotive 2-part clear the durability is going to be the same as car paint essentially

I think it was just simply candle wax

not like this, with different paint you'd need to put something in the water to make them float, or do some other tricks.