Hi Hilde-bear, and welcome to ThePhotoForum!
This is a nice one, though I am not too fond of the amount of white sky and the bit of railing on the right. Other than that though, you can still "do something" about this photo's brightness if you postprocess it in Photoshop - if that is what you consider doing to your pics at all!?
And where does the blue hue come from if this is a real and true b+w pic?
Is it scanned?
Can your scanner (like my own) not distinguish between colour and b+w, so he scans all b+w as RGB-files, too (i.e. colour pic files)?