For the Victoria carriage, described in previous posts, I first spayed the entire vehicle with red car primer. After that I painted the undergear, footboards, and folding hood with black acrylic. I chose Crimson Lake as the main body colour and painted all the relevant panels with Humbrol enamel (now RC403, though I used an ancient tinlet of HR116 - these paints seem to last for ever, providing the tin is well-sealed.) Once this was dry, I used Grass Green enamel (Humbrol 80) for the leather seats
When I first put this model on the carriage-truck, I though it looked a little dull, so decided to brighten it up with some gold lining. It's easy to lose sight of how small this model is (at least in a 4mm modeller's eyes) but I found that 'extra fine point' pens, of the type intended for Birthday cards and the like, provided a fairly easy way to add the touch of brightness that was needed. I simply ran the tip of the pen, very lightly, along the edges of the mudguards and the hand-rails by the driving seats. I think it has given quite a 'lift' to the model and the photo below illustrates its small size alongside the pens that I used!
It always surprises me how important a small bit of detailing can be in the appearance of a model. There's still some re-touching to do, and I must find some replacements for those rather very bent wheels