It's for a conservation plan, but its not to scale at all (its a site sketch I did while inspecting the ruins).

I can't really add a parchment effect because it is for a report on the ruins, and it would look a bit mad.

But it seems a shame to restrict ones-self to black and white. Historically these church plans were always black and white due to printing, but nowadays I can use any colour I want. I want it to look crisp and modern and simple.