Rainbow sky

This is a shot I took a while ago with the sun rising behind the building. It produced a rainbow effect in the sky (coloured banding). Just curious if anyone else has experienced this effect before and opinions on whether it ruins the shot.

Whether it is real or not my first reaction was that it looks a bit fake - I have not seen anything quite like that so high in the sky. Unfortunately in the digital era this is something I have experienced - there are so many overly processed images that some 'real' photos start to look fake. Having said that the more I look at it, the more it grows on me.

The building looks good for sure.

I think you got unlucky though, because with the yellow building a mostly blue sky with maybe a little color on the horizon would have contrasted nicely.

Thanks ejenner. I haven't experienced it in any shots before. I guess I'll just re-shoot at a different time of day.