input please

i just installed 4 digital print perfs the prob i have is there is windows off to the side of where these r and the sun shines through the back and all i can see is the windows behind them .What can i back the prints with to make them more visable i told them this would happen but willing to pay to fix
thanx shane



_____________________doors and windows
perf \ /
\------------/doors

 

nobody had this problem before my diagram got messed up when i posted trying to show window layout lol

 

at this point they dont care i just dont know what colour to put behind it without it looking like crap and i also thought of the frosting,he suggested tint but dont want to get involved in that