The painter is AX Trindade. Early century paintings feature a lot of diaphanous gold bordered nine yard saris. This is probably from the The blouse and pearls are the usual finishing touches for Goan (and Maharashtrian) elegance.
What a beautiful large low bun with real flower gajra! Care however should be taken before adopting such hairstyles, as due to it's high static charge, it will cause phlegm to move up in the throat, causing the voice to quaver & a frequent urge to clear the throat. A heavy chabi chhalla with a long & wide hook if inserted at the edge of the pleats of the saree, will reduce this problem as it's hook will activate the acupressure points that act to keep the throat clear.