Love the blue feathers of this one.
The Blue Waxbill is estrildid finch found in Southern Africa. They measure around 12 cm in length and weigh between 8 - 13 grams.
Blue Waxbill measures 2.5 x 3.5 inches and is painted on 300gsm smooth Arches watercolour paper.
Many thanks to Derek Keats for the reference photo.