My Favorite Chinese Vase

I bought this vase over 10 years ago. The thing I thought was unique about this vase was the glazing. All the primary butterflies and flowers are raised higher than the porcelain. Now keep in mind the the porcelain is not raised under the butterflies and flowers just the color glazing. It looks all hand painted. It is approx. 15" high and the largest width is approx. 9 1/2 " the base 5 3/8 ".
The picture quality is poor but its the only camera I have. I haven't found another vase with this type of glazing that is raised this thick on the vase. Does anybody no what this process is called? I don't know if it is valuable either because I just can't find anything to compare it to. Can anybody tell me anything about this vase.

Thank You