A new exhibition at the Opera Gallery London, is offering two very different – yet curiously complimentary – sets of artistic responses to nature. It highlights the work of Dutch sculptor Pieter Obels and French-Chinese painter Feng Xiao-Min. This is Obels’s first major London exhibition for ten years. Born in 1968 and now based in Tilburg in his native Netherlands, Obels is a sculptor who works primarily with the kind of complex Corten steel structures on display here. He welds sheets of steel