Railway bridge and rainbow

Original aspect ratio size:
24 wide x 15.5 high inch ($229.00)
36 wide x 23.2 high inch ($310.00)
40 wide x 25.8 high inch ($345.00)
48 wide x 31 high inch ($432.50)
72 wide x 46.4 high inch ($862.00)
108 wide x 69.7 high inch ($1,880.00)
128 wide x 82.6 high inch ($2,650.00)
150 wide x 96.8 high inch ($3,680.00)

Standard size:
20 wide x 16 high inch ($210.00)
24 wide x 20 high inch ($248.00)
36 wide x 24 high inch ($310.00)
40 wide x 30 high inch ($380.00)
48 wide x 36 high inch ($485.00)
72 wide x 48 high inch ($862.00)
108 wide x 72 high inch ($1,880.00)
128 wide x 86 high inch ($2,650.00)
150 wide x 100 high inch ($3,680.00)