Here, I just cloned the image from the block to the
left to eliminate the reflected window. However,
someday I should find another photo and try to layer
the actual content onto that area. Also, I should
try to get rid of the bright spots remaining.

For now, this is the one that's at the
Vatican/Sistine-Chapel page,
though as you can see, most of my travel pics are too
washed-out, but life isn't long enough to try to
correct past errors (of all kinds).