The hanging of Van Gogh's final 1887-88 "Self-portrait as a painter" moments before reopening to the public was the last task after a seven-month multi-million euro facelift.
"From today, visitors will be able to view the new exhibition that displays Van Gogh as if they (visitors) were watching over his shoulder" as he painted, museum director Axel Rueger told AFP.
"It really shows how Van Gogh developed as an artist and visitors can get into the 'nitty-gritty' of his methods in the new exhibition," he said.