Manipulating a painting: some techniques work, others do not

Using my small painting of mangoes I tried out different effects using Photoedit to see if other mediums work better. I tried - stamp, negative colour, and chalk and charcoal.
Perhaps the original painting is best because of the truer colours of the mango, although I liked the colours of one which turns the fruit to red with a purple background. Looks more like persimmons then. The stamp and chalk/charcoal pictures seem too heavy-handed.

What would Monet think about the technology today that can turn a pic into something different in ten seconds?
W.