wow, already some huge progress by Pat and Sal (and a nice example by MBR)... makes me so keen to get started on my dio base.
here's my progress so far:

only 6,897 more to make LOL.
but seriously, i would like to start a discussion with those who will be making a brick structure as i plan on testing some painting techniques on small scraps.
1) do you paint the whole wall brick colour and then use a white wash for the recessed mortar?
2) do you paint the whole wall brick colour and use white powder pigment to whiten the recessed mortar and dust up the brick?
3) or do you paint the wall white and then paint the bricks individually by hand leaving the mortar areas white?
i've seen some brilliant work done with No2 technique and you can end up painting so many variations of brick colour over a base colour that No3 doesn't seem that crazy.
are there other options i should investigate? cheers, bd.