What is the value of Ltd Ed of only 300 Worldwide Porc doll with one eye brown and the other one green?

I searched ebay (both active & completed listings) and couldn't find any dolls by that artist, but generally there is very little interest in modern porcelain dolls among doll collectors and most do not have a high resale value. Factory mistakes usually do not increase the dolls value as they are common with m produced dolls. But you should keep searching ebay until one is listed just to be sure. Some artists have a following and I don't know enough about modern dolls to know which ones do.