Selling a Doll Collection?

I have the full collection of four dolls for the "Where Do Babies Come From", porcelain doll collection by Artist Titus Tomescu for Ashton-Drake Galleries. I also have baby Emily-Anne (different collection). I began collecting back in 1996 as a teenager and all dolls have remained in their original boxes and original delivery boxes.

I wanted to know where I would go to sell these and how much I would get?
I paid £50 each for them.

Thanks.

By Kate from Liverpool, UK