Eric Smith Painting

I have a painting by Jamaican artist Eric Smith. It's a portrait of a young girl dressed in green with a green wrap upon her head. I would like to find out more information about this painting. I found other pieces by him online but could not find this particular one. I did see that his work is highly collectable.  I would like to know it's authenticity as well as any other information anyone may have on the piece. I have attached photos of the painting along with this email. The third photo is the artist's signature it's just hard to see by photo.  The length of the painting is around 18 x 14 inches. I would greatly appreciate any information you all may have on this painting. Thank you in advance for your time. I hope to hear from you all very soon. 

Brandi Thompson