Hi... It's a nice photography, and a beautiful place.
For screenshots is not necessary... But for photographies it is a good practice to give the credits, even if they are yours. You can add a little text below the photographies using the <sub> tag, or specify at the end of the submission that you're the owner of the photographies.
Yeah, I am lucky to be able to jog along the waterfront here and we can see the bridge with the sun set behind it. I took the picture facing the other way though here. Next time I will catch the sun set but will be darker.