If at first you don't succeed

I photographed the Glasgow University library a couple of months ago, as the weekly blip challenge was 'block'. It looked OK, but the angle wasn't great and the sky was a very flat gray. Walking past it today, I noticed that the sky was a bit more interesting and there were good reflections in the glass, so I tried again. I'm not happy with the angle so I guess I'll have to keep trying until I get it right.