I would use MS Paint, a standard, easy to use facility on your PC. You could reproduce this photo above and be sticking it or chosen portions of it onto a plasticard backing in a couple of minutes.
Move the captured image (via CTRL+PRINT SCREEN) through the MS Paint programme into a blank WORD document, Print as large or small as you need (If you go to VIEW on the top of WORD toolbar and select GRIDLINES, these will show on the image but not appear on it when you print. This will allow you to size it for scale by dragging the corner of the image on the WORD doc. I find one grid square equal to about 9 scale inches in 4mm scale, so you can play around and adjust for any scale).
I then print whatever is required, and cut it out, using printer paper, not photo paper, to keep it matt. I then brush liquid poly onto the back of the printed image and it can dry if it chooses to. Then lay it on plasticard and re-soak the image with liquidpoly. This goes through the paper and sticks it onto plasticard. If not fully fixed, give it a minute and the add more liquidpoly. BE WARY - ENSURE GOOD VENTILATION.
You will now have the brickwork you had in the photo fixed to plasticard which you can trim as necessary. Align another print-out of the wall and by joining print-outs you can make it as long or as high as you need. I copy photos of signs, make my own signs in Powerpoint and copy those across, and lift bits of useful photos I find or took myself. Once you get used to MS Paint and the transfer to WORD, it is very quick and easy.
You would get about 18 scale feet width of brickwork from the above photo.