Fun with Shadows v2

I decided to take another peek at it because the chair wasn't visible enough. In the process, I wondered how other people were making these themselves so I've decided to attach my PSD out of curiosity on how other people do shadows like this?

Initially I was going to rasterize the shadows and give them a realistic blur as you got further away from the ground but it just became too hard to see.

Anyhow, Get the PSD and if you have any tips, let me know!