The Art of VFX released an extensive interview with Animal Logic’s VFX supervisor Will Reichelt and Animation Supervisor Rob Coleman about the work on Peter Rabbit.

http://artofvfx.com/wp-content/uploads/2015/02/ArtofVFX_Logo_800.jpg

Check out the article here:
http://www.artofvfx.com/peter-rabbit-will-reichelt-overall-vfx-supervisor-rob-coleman-animation-supervisor-animal-logic/


I addition to that, Screen Australia released a great making of video about the process of making the movie at Animal Logic.