3-D Glass/Watercolor Signed J P Well 38/450

This is a watercolor with 2 separate peices of glass (one in front of the other) which are also painted with the lady which gives it the 3-D affect. The bottom or furthest back part of this picture is a water color and is signed what looks like J P Well 38/450

The water color has a black necklace painted on it

then the next peice is glass with the outline of a woman (her face, hair, breast, mountains and her right arm) Then the top peice of glass is partly outline of her hair, her left arm, legs (one with the shoe) this is really hard to photograph.

Any help on this would be greatly appreciated