Is there a way to change your perspective once you've already placed artwork onto the grid?

This may be something incredibly simple that I'm missing, but I can't figure it out.

I'm working on a sticker with a Big Ben style clock on it. I've created it using the 2-point perspective ability in Illustrator. Unfortunately, I've decided that I want it to feel "taller" than when I started, so I need to shift the perspective. However, when I use the Perspective Grid Tool and adjust the ground or horizon line, it only adjusts the grid, not the artwork. Is there a way to have the artwork adjust with the grid so that I can move the artwork around in 3D space to find the right perspective?

Thanks!