The main challenge when editing architectural photos is dealing with lines of buildings that are tilted or distorted. These lines must be as straight as possible. You can use the Lens Correction and Transform tools to straighten them. Pay attention to the sky at sunset — denoise it and make the colors come out. To downplay a certain color, use an HSL (hue, saturation, lightness) filter. An HSL filter will affect only the chosen color. In the end, make sure that you’ve paid enough attention to the details, structure and colors. Your image should look realistic yet beautiful.
And remember: always shoot in great light, watch your verticals, and take advantage of layers so you can manage edits selectively. Good luck!