@suzanne234 Thanks Suzanne - when Taffy gave all of those wonderful steps outlining how she produces her fabulous architecture images I thought I'd at least try to start doing something interesting. Like you I thought it accentuated the lines and reduced the colours and details. Thanks for your comment!
@dkbarnett Thanks Delwyn - it was a bit of an experiment with a "photocopy" filter made partly transparent and then overlaid onto the original. Thanks for your encouragement. Cheers Rob