I love painting robins. I am really pleased how this one turned out. I mainly used my new no 3 round sable mixture brush - it works really well. I am very happy with the brushes I bought. I think I will always buy my brushes for the UK company Rosemary and Co (http://www.rosemaryandco.com) - the quality is excellent and cost a third of the price of store brushes (even with postage!!).
Robin 2 measures 2.5 x 3.5 inches and is painted on 300gsm smooth watercolour paper.
Many thanks to ChrissyM for the reference photo.