Should I sell your Feng Shui painting at a profit after it has proved lucky for me?

Last year I acquired the acrylic painting Greedy Dragon of Ambition from you. It boosted my career tremendously. I got two promotions and major raises in salary. Now I have a new, lucrative job offer from an MNC. I have yet to decide whether to take it. My question is about the painting. Seeing the benefits of my Greedy Dragon he has expressed his desire to buy it from me. He has offered me a very good price for your painting even when you are painting them for $300-400. I want to know whether selling this painting – and acquiring another greedy dragon from you – will have any adverse effect on my career growth.
Nick
(Surname withheld on request) 

Hello Nick. You are not the first one. There have been some others too who have resold my paintings and acquired another from me. To be honest I have not heard of any adverse effect on them. However, they have resold the paintings after achieving their goals. Like one couple resold my painting of the giant (for conceiving) after having babies and another resold the painting of the greedy dragon of ambition after successfully retiring. Since you are very much active in your career, climbing the graph of success why do you want rock the boat by trading the painting that has brought you luck. The value of painting – of all the paintings – are known to have gone up.