Vincent and the Doctor - S5-E10
Factual error: Amy inspires Vincent to paint sunflowers for his iconic Sunflowers painting. The episode takes place in 1890, even though Van Gogh completed Sunflowers two years earlier in 1888. (00:18:25)
Vincent and the Doctor - S5-E10
Factual error: By the time the Doctor and Amy meet him, Vincent van Gogh had already mutilated his ear. He should be missing part of his left earlobe.
Vincent and the Doctor - S5-E10
Continuity mistake: Amy's tights appear to be gone when she's watching Vincent paint the church. Previously whilst walking to the church they are on.
Vincent and the Doctor - S5-E10
Continuity mistake: When Vincent asks Amy "One of my favourite 'whats'?" his right arm is suddenly lowered even though he was just holding up one of his paintings. (00:06:40)
Chosen answer: 1) When Stephen Moffat took over he ignored a lot of what had been developed before (there is not in-universe answer). 2) It would have killed Rose, so the Doctor absorbed the energy. His body regenerated before the energy could do a significant amount of damage that would prevent regeneration.