I have an emotional response to such pictures, for reasons irrelevant in this context. So always looking for the subliminal message about the man-induced change of ecosystem.
Most landscapes taken with very wide views tend to lack 'focus' [sic]. So also this one.
I am intrigued by your interpretation, Bjørn! I would never have thought about cropping out the sky since it was such an integral part of the scenery. Which is definitely a visual bias of me.
When I saw the lake I thought the lake was polluted. So I had to look it up. Apparently the Lake was formed in 1886. It was the largest artificial impoundment in Australia. It is amazing that 130 years later, many drowned trees still stand. For how long? If I would have know earlier, I may have decided to focus more on the trees, perhaps even trying to isolate one in a photo. But I'm afraid someone else has to do it. It's a long way from here. ;-)
Out of curiosity: what do you mean by lack of focus? Aren't wide angle views by definition shot to illustrate grandeur and, eh, wide-ness?