In my story there is a full size (Island Three) O'Neill cylinder, 5 miles in diameter and 20 miles long.
It doesn't have windows, but is lit internally down the center of the cylinder with a 20 mile long, very bright, full spectrum lamp.
There is a budding artist in my story who lives there.
As imagined when she looks up the sides of the cylinder, she sees her neighbors from down the road overhead, would there be a bluish tint to their landscape which is in the distance, 3-5 miles away?
Also, if she stands at the very "north" end of the cylinder and has a clear view all the way to the "south" end, 20 miles away, would she see any blue or bluish sky due to Rayleigh scattering and the long linear "sun"?