“Growing together” in marine-grade aluminium by
Western Australian R. M. (Ron) Gomboc. Price $39,000.

The same (or very similar) sculpture was in SXS 2007, titled
"Nature's Balance": http://www.pbase.com/image/88868115

[No mention in the catalogue that it represents a whale; but
that's how other visitors saw it. The sculptor's intention?]