In the forground is a is a M4A3E2 “Jumbo” also in the lineup are 2 M4 (105) self propelled artillery versions.
The strange looking vehicle to the rear right of the foreground "Jumbo" is a Tank Recovery Vehicle M32.
The rest of the lineup is comprised of standard M4A1 versions.
In the background is the wrecked seaplane crane pictured here
http://www.stolly.org.uk/ETO/wreckedseaplanecranechantereynenavalairbase.html
http://en.wikipedia.org/wiki/M4_Sherman_variants