Then get an OHP and print an inverse of the blueprint on transparency, then project onto your wall. Looks okay? Right, first step; paint the wall a nice deep blue. Let that dry. Now the slow part. With white paint and a small round brush, trace the projection. Work systematically - i.e. do one element at a time.
If you want to do the background lines, you'll need a blue paint two shades lighter and a long string. lightly brush the string in the paint, then with the help of a friend hold it to the wall, with a little tension and "pluck" it. That will leave a light, hopefully uneven straight line on the wall. Rinse and repeat downwards, adding a paint top-up now and then.
Post a photo of the finished wall and get famous!
