Welcome to Librarium Online!
I have painted a squad of Warp Spiders and have 'flames' coming out of their death spinners (reds through oranges and yellows to white).
Would an overall wash be a good idea to tie the different colours together better?
If so, what colour wash would you use?
Would you water it down at all?
Thanks for any/all advice.
hmmm, I wouldn't wash it because its going to not only fill the gaps (which is what you want it to do) but distort your already painted colors. However if that's not an issue to you and you just want it to look detailed I'd have to say your best bets are either gryphon sypia (dont use it often so I cant spell it) or Devlan mud. Gryphon is as close as they get to yellow, but oersonally I'd try to get my hands on some old inks, they might do you better.
Fire is... "backward" in as much as it's hotter and thus lighter coloured closer to the 'core' and gets darker toward the tips. You definitely don't want to 'shade' it with a wash! If you just feel the color transitions are too abrupt and want to make them blend better, a few glazes with an orange paint might do the trick.
Do look at some pictures of real fire though, you will find that the color changes actually do have fairly abrupt boundaries. Sometimes we mini painters go to excess in wanting everything to be a beautiful continuous gradient, even when nature has abrupt color boundaries.
A transparent yellow ink may help. Many inks have pigment in them which creates more shading. Yellow will not interfere too much with the colours but will help them work together.
Thank you for your comments.