The exhaust pipes got a darker colour and some dry brushing inside.
I took a pic on the exhaust to more clearly show the darker colour.
Some putty was applied on the seams around the body and intakes.
My idea was to remove the excess a while later with cotton buds and etylacetate, but it got late, and I think now a sander is the only way! I just dread the work re-scribing all the panel lines.
I’m also having a bit of a problem with the seam in front of the wing keeps breaking up. Maybe adding a bit of thin plastic will remove some of the tension.
Lastly I tried tire black on the tires.
On the pic it’s quite recently painted and looks more like a tire on a WW2 aircraft. Looks like it darkens a bit when totally dry. Not sure if need to add some black to the mix.