Professional work. Only one comment. I think that Clash between lighting & diffuser is Direct Event. If the consultant replied on 1st Feb. 2013 and the work should’ve started on 15th Dec. 2012, this means contractor either did not worked yet or will modify the executed work. The consultant delayed contractor for 47 days to reply and the new information will need drawings submit and approval process, the lighting fixture will delay for for min 10 days because all float will be consumed.
Hope my comment was valuable to you.