My kids both liked the life sized Batmobile the best, made from 500,000 bricks ! My son also liked the larger than life dark knight batman. My favourite one was called "Angel" (above middle) of Superman with wings flying up towards the sky.
I love these art of brick exhibitions, as they do have some thought behind them and are very accessible for all ages. Sawaya is quoted as wanting to create a democratisation of art that is accessible for families and children.
My other favourite piece is the famous "Yellow" (above left) which was on display, about baring his (the artist's) soul and letting everything out... with LEGO guts spilling out. So brilliant! The other brilliant one is Batman (below middle) trying to repair himself one brick at a time...
More information on Nathan Sawaya and the art of brick here: www.brickartist.com
Art of Brick - DC Superheroes is on now at the Powerhouse Museum until the end of April 2016.