I'd be willing to insert the renderings in their locations on a large pano of our skyline, but I make no guarantees about how polished it would look...I'm simply not that good, lol.
It is a good idea though and gives you a good sense of what the city will look like. For example,
here is a future rendering of Toronto, with all of it's proposed, approved and under construction projects. Credit goes to user "Maldive".