So winter is a bit of a slump period for me and its also been pretty cold in the UK, so now that we are getting some light again, here are the yellow parts I've repainted.
After allot of testing and combinations to try and keep as close to the reference material, I chose to go with a brown underlayer and a very beat up look to keep in with the JP.
Also went with a lighter brown as backing to the Mythasaur to keep with reference as there isn't a clear frame with contrasting backing other than the one shown below.