thanks, jefferson! your mods and suggestions are really valuable...i'll set about with playing with these. i actually like a bit darker shading in on the second one, obscuring the bricks a bit, and will fuss a bit with that. on the third, i agree completely; lots to play with on the black and white image; mostly just starting with what i think is a nice composition, art in sport, etc.
really appreciate your time, thoughtful reply, and massaging the images; exactly what i was looking for!