Thanks Cmdr, I've tried household emulsion and then washed it with Army Painter strong tone. Big mistake it looked a right mess, the emulsion colours are very close to the colours of my painted items so I'm going to persevere and try feathering the colours together. If/when I am successful I'll put a photo up. I wouldn't know where to start with anything other than water based paints I cannot remember the last time I used enamels. Ah well onward and upward....