Unless an artist is largely or entirely bound to the artistic traditions of his ethnic culture, his personal style when painting representationally will not differ hugely from a number of representational artists from other backgrounds. Which is a long-winded way of stating that Gyzis was essential a Munich School painter, his Greek origin notwithstanding.
This is considered his most famous painting, according to some Internet sites. Maybe it was famous, but I don't think it's his best work.
I think this is intriguing, and a lot like Belgian Symbolist painting. It might have influenced Franz Stuck who was still a student when this was painted -- though Gyzis did not become a Munich Academy professor until 1886.