Vincent couldn't take on challenge hidden inside wall and end up arguing with me though I've tried my best to find solution together. He just left job unfinished.
He is emotionally unstable and just a bad plasterer.
He had to move the wall with door frame to the side with exact instructions given. The result is missing 2 cm to 4 skirting cuts he did himself. Now all 4 skirtings are spoiled and the wall has to be moved again. The wall with niche has to be knocked down entirely as it's too damaged too. He is decent enough do not ask any payment though and he did apologies later on. Perhaps, he is good for other building jobs, I wouldn't know it. I wouldn't recommend him to do any decent plaster job involving wall niches .