That's how it looked like when it rains here in Uganda. Pic was taken some moths ago. In between we worked on the compound and it is more suitable even in rain season.
The black shadows in the upper corner are not because of the vignette of the camera but the iron bars before the windows...
Pentax K20D - 18mm (27mm) - f/4,0 - 1/40 sec. - Iso 320 - CS4