Ah but that is cool to know Fender3x, I can only hope that the after all this we have signs of wear on the fretboard!
Sounds like there is not a wrong way as such, but I like the idea of an oil to enhance the natural beauty of the rosewood and have nicer feel. Guitars are such a tactile thing right? I also like the idea of a matt contrast to the glitter-metallic body.

I used acrylic paint pens to do the tattoo-style water dragon (as per the 8YO creative directors requests) Posco brand - Did have to go over twice to get good opacity, so you need to be a pretty steady freehand drawer to pull it off. It's not perfect up close but she is delighted, so that is what matters.

I highly regret using a spray varnish though. (Thought I'd play safe by using the same paint product range.) Got a lot of cloudiness which I could not 100% fix. Such a shame because the metallic paint colour was divine, if there is a next time I will definitely stick with a good brushed on varnish and high quality brush.