I love the way the brown aged tones come throughI had an idea that each house was to be on a hill, so i used old wall paper scraps to represent this (there are some fab decorative pieces around) and I glued the said "hill" on to each board and put in some background colour. I started with the creamy colour you see here, it's "Golden's" heavy body "Titanium Buff" acrylic, i don't use a paintbrush for this part, just squirt the paint straight onto the board and move it around with my fingers. Sometimes i use an old bank card to move it around or anything that can give that random effect, i have a vinyl roller which works too, but when using that i prefer to put down other colours and just roll over it all the effect can be amazing. Titanium Buff mixes well with other colours too so it's good to start with.
I then added some shades of pale blues, i'm never precise or fussy about the shades of colours, i mostly just pick whatever is nearest, pale greens work well too. These are mostly the background colours, but sometimes if a background comes out well i'll just stick with it and not add further colours.