Well, DBII the thinning ratio was about 70% thinner to 30 of paint, wanted it to be thin and was carefully sprayed in a light layer.
Other colours would be black, browns and the colours that you have already used at full strength, which you would lighten to varying degrees to create differing shades. It does depend on the subject and what you are trying to depict or create. Hope this helps! If you have any more questions please ask.
Correct People In both respects. here is the armoured version of the UhU.this is not mine so i cant take credit were nones due!
Sd.Kfz.251/20 Ausf. D "UHU"