His works developed in different phases. One of the most controversial periods arose in the eighties when Klashorst introduced the artists' movement “De Nieuwe Wilden”. They painted with strong, expressive colors just like the movement that stood at the beginning of modern art; the Fauvists (1898-1908), which means “the savages” in French.
A forerunner of the Fauvists was one of the icons in art history: Paul Gauguin. A number of points of contact between him and Peter Klashorst are striking. Not only in painting style, but probably also in terms of mentality. Just like the artist Gauguin, Peter Klashorst left Europe for exotic places with romantic ideas. Both artists liked to make paintings about the sensuality and sexuality of young women. The naked ladies on his canvases are considered obscene in some countries. This theme and the associated dissolute lifestyle have therefore regularly been discredited and made the national news several times.

Despite everything, his talent is undeniable and his work has been extremely well received by the art world at home and abroad. He graduated cum laude from the Amsterdam Rietveld Academy, was awarded the Royal Subsidy for Free Painting and with the artist collective 'After Nature', Klashorst even gave Dutch art history a new impulse.