VFX Background Plates

I'm making background plates for a VFX 3D stereo project (the projected screens are 4:3). This shot is comprised of a foreground scene, sky replacement, Photoshoped trees, added DOF masks and some colour grading. I shot the time lapsed clouds on a 550D over my back fence. Have learnt a lot about the VFX process in a stereo space but the hard thing is woking in 8 channels (360 degree view). More images to come, its just taking a long time to complete...