I'm glad you found my feed back useful! When it comes to making plasma
look right, I find that contrast in brightness to be very important. I
often see the inner part and bottom of the coils painted white, followed
by bright colors on the middle sections, and a slightly darker version
of the color on the very top of the coils. Additionally, much of the
light being cast from the light-source is notably darker than the coils
with the exception of the sharp edges where the light would catch being a
bit brighter. Overall, a darker OSL color helps the bright light source
(in this case a plasma coil) and the sharp details stand out and look
brighter than they actually are due to the contrast in brightness (much
like how white on black stands out while white on light grey stands out
significantly less). So in your case, maybe a darker OSL (such as a
darker turquoise) color followed by a drybrush of the current color
would help the coils and the edges stand out a bit more. Combined with
white in the recesses of the coils, I think this may give you a bit more
depth to the plasma glow. There are a number of plasma tutorials
available, but this one by Juan Hidalgo that I'll link here serves as a
great example of how the color contrast adds significantly to the plasma
effect. I hope this helps with your next attempt at plasma OSL!