Royal Navy Buff Yellow Shades

I've made a start on the Royal Navy ironclads by blocking in the bases with Vallejo Dark Sea Blue, just to act as a basecoat for the sea shades but also to make the models look a bit more ship shape and less like liquorice all sorts. I find that this helps a bit when you're trying to find your way around the models during base coating. As it's Bank Holiday Monday, I have other less enjoyable things to do, but I'm hoping to get at least the sails blocked in by the end of the day.

I've also been trying out various combinations of paint shades to try to replicate the Victorian buff yellow shade. You used to see this on naval tugs, lighters and other auxiliary vessels, where I assume they were using up old paint stocks left over from the pre-WW1 period? Anyway, I've narrowed it down to a basecoat of Flames of War Light Brown, with a highlight of Vallejo Medium Flesh, perhaps in a 50:50 mix with the basecoat shade. I think this should be a fairly good match for HMS Warrior, based on the photo above?