Base Painting Questions

I like to use a brown primer like Floquil RR tie brown. You can even use Craft Acrylics for this. To get the variation in brick color shoot or brush on what ever red shade you like then take that base color, split in in small containers and darken and lighten the shades then pick out your bricks for color variation. Oils washes wil deepen details and add shadows and bring out texture.

Rubble is painted more or less the same way. Drybrushing lighter tones will break up the objects in the rubble and add texture and demension. 

Hope this helps out.

Hi Leddy. Do you have pics of the commercial base on hand? Other modelers who might have used the same or similar base for their diorama, can then post pics of their base and the colors that they used. This might help to better convey, as opposed to just giving color numbers/mixing ratios, etc.