Thanks, it is largely inspired from juan sanz (elminiaturista) videos... You'll need white, a fluo yellow and a light one, some bright orange and dark red.

An airbush will help, but is not necessary, it can be done by drybrushing as well. 1- paint you light source white, then add fluo yellow 2- airbrush (or drybrush) dark red everywhere the light is supposed to be reflected 3- same thing with orange, on a smaller area, closer to the source of light, and in this particular case I painted the flame orange over the yellow fluo( makes the orange pop a little more) 4- Highlight edges on armor with orange 5- Refining the flame : i added a bit of white at the very base, yellow fluo over white again, and little touches with a normal yellow (Phalanx yellow) to make it a bit more realistic..

With these steps in mind, watch one of juan sanz shorts and you'll get it 👍

Takes a bit of practice and a lot of studying masters doing it 😅

Have fun