Pirates

 Again, based off of an earlier concept. This was a matte painting concept that I made for one of the London scenes in Pirates of the Caribbean on Stranger Tides.
Tim Hollyman did a great job at almost keeping it exactly as I made it here, for the final matte painting in the film.

quidditch pitch

Based off of some earlier concepts, I produced these as a guide for the vfx 

a couple of study sketches from movie stills

Deathly hallows

A rather quick water spell that Harry casts within the room of requirements scene

Harry Potter and the Deathly Hallows part 2

here's an example of some of the preliminary stages that I would go through when designing some fx concept on a sequence.
For this particular shot the last frame was then passed onto Andrey to add some character design to Nagini's Death and the release of the Horcrux

a view of our courtyard