I'd echo slobodan's comment on the sky. I have a thing about weird unnaturally coloured skies, I recognise the orange as traditional in UK urban areas, but can't help thinking a deep inky blue would be a better [more realistic] top third. Don't get me wrong, it's something I continue to make an arse of in my own photos, but I am conscious of it and try to resist the temptation to make it colourful just to add interest.
So, if we're trying to add interest, [there's plenty in the middle ground ] maybe a flash or other light source [torch?] to provide a touch more detail to the Calton Hill foreground thingy, rather than taking the more silhouetted approach. [Take this with a pinch of salt, I'm viewing this on a crappy laptop screen.] This leaves the upper sky to act as a backdrop to a glorious cityscape.
Hope this doesn't seem to harsh, feel free to get your own back on my Loch Achray shot.
Thats mild mate One of my close photographer friends says "Looks fake as f***" I like my crit harsh as I want to learn loads!!!
Off to find your shot