I think today's was the toughest yet, perhaps because I tried to use natural light. It gets darker so quickly these days, and I couldn't bare to just leave the painting at a state where it looked so unfinished. So, as well as some careful observation, some memory had to come into play. [Guilty!]
The shadow-side of the banana was so difficult to colour-pick for! You really have to trust your eyes. It can be tough creating the tonal difference in those areas that previously would have been considered 'subtle' - when you observe closely, the 'yellow' tone changes so frequently, and with it, the texture.
It's great to feel like I'm learning from these.