In retirement, after a rich and rewarding career in the natural sciences, I have taken up oil painting with a passion. I always hankered to express myself visually and felt cheated that I couldn’t do art at school because of timetable clashes with science subjects. I wasn’t raised in an artistic environment, but my immigrant parents worked hard to give my sister and me a good education. So, with this as my background, am I too old to take on a second career as a painter? I ho