The last four images (if you are viewing posts chronologically) – the three of schoolgirls and The Student – show GC’s very different styles in 1880, 1889, 1909 and (perhaps) 1932.
The best of these pictures, for me, is The Student. It has the fine sobriety which comes into some of his work around 1908-9, which could be said to mark the beginning of late Clausen and even the beginning of the truest Clausen, although for the purpose of the categories shown on the right I take “late” as beginning around 1918. The 1932 picture (if that is the date) is not in that manner: there are no simple divisions into periods.
The market hasn’t yet understood late Clausen, as is shown by the dramatically different prices fetched by pictures in the 1889 style (even more than the 1880 style) compared with the “late” work.