format 15x20 = 15 euros
format 30x40 = 30 euros
format 45x60 = 40 euros
format 60x80 = 50 euros
format 90x120 = 80 euros
format 15x20 = 35 euros
format 30x40 = 80 euros
format 45x60 = 110 euros
format 60x80 = 150 euros
format 90x120 = 175 euros