Did you find this with a little info? http://www.poulbenn.com/Coup-de-coe...re-de-Chine-coloriee-Vientiane-Laos_4956.html
It's acrylic and I know the artist pretty well...it's my mom It was very fun to find an old painting she made.
WELCOME Kattaleya !!! Your mom has a great eye and steady hand ... the colours are wonderful as is the subject ... LOVELY artwork !!! ... Joy.