>>3014855I've done commercial architecture for a while now.
To fix perspective you have a few options
A shift lens - expensive, but the best way to do it,it's a lens that corrects for the perspective distortion caused when you point a camera up or down. the second shot was at 12mm, there is no shift lens that wide on the market, so I used...
Photoshop - Persepctive correction tool is nice and easy to use and gives good results fast. But if you want a REALLY quick option...
Lightroom - the "basci lens correction" toolset works for most images with straight edges, you can fine tune this.
The other aspects of these images are a fuck ton of cloning and healing to remove unwanted artifcacts and colour correction.
The first image looks so orange because I have a pink/blue coloured polariser on the lens (these are no longer available) which gives those weird colours, but when corrected in post can give some awesome results. Here's a yellow/blue and the pink/blue in use at the beach.