How to Improve Gallery Pictures

I'd love it if I could just take my own screenshots and use them. An option, of course, with the default being it does the job for you.

Way I figure it, if you're proficient at building, you probably have a bit of an eye for angles as well. You'll know how to set up your shots to highlight what you think is worth highlighting far better than any automated screengrabber.

I imagine it working something like this: Next to the camera icon, you have another one called "Take Custom Picture." When you click it, it takes you into a special form of live mode where the only thing you can do is hit the screenshot button or hit a "back" arrow to go back to the gallery screen. It then cycles you through each area it normally would on its own, only instead of it snapping a picture, it waits for you to snap one, then it proceeds to the next part of the lot. When it's done, it takes you back to the gallery screen.