These editions and commissions are sold out but you can still look at them online. They will not be reprinted as editions. Sold out limited editions are never re-issued. However, there are plenty of other fine art nudes you can buy as well as art photo books available.
Determined to acquire one of these sold-out artworks? The artist can attempt to introduce you to a seller on the secondary market. After that it is up to buyer and seller to complete a purchase (The artist will not be party to the sale.) Be prepared to offer a base 50% premium over the original selling price to persuade the owner to part with their artwork. In addition to this base, your offer needs consider amounts the first owner spent framing the artwork and the logistics of packaging and delivering the photograph. The owner may be willing to sell if your offer allows them to purchase multiple additional artworks with the proceeds.