Martine Guay

nice photo.
I'd suggest cropping to square. This way we'd get rid of non-informational parts (moreover there're artifacts on the right) and we'll make a nice triangle inside of the cropped square - which is a good compositional solution.
have a look below at the attachments

and the 2nd image goes here

I agree with Anton, the square make the image pop out and draws the eye to your main attraction. I do not care for square crops...just a personal preference, however it works very well here and that is what makes PN so great  ;) Nice night image with well handled exposure.

Best regards, Pamela  

Thanks Anton and Pamela. I may be stupid but how do you crop with a triangle?

Many thanks for yur comments

Warmest regards

Martine

no, you crop with a square.

Triangle is a compositional figure inside of the picture as you can see on my 2nd comment