The middle print was a CV exclusive by Cat Staggs, limited to 250.
Since this is not Vintage toy related I will move this to the Art subforum where hopefully you'll get the rest of your answers.
"Was it over when the Germans bombed Pearl Harbor? Hell no!"
Looking for SWS.com's Vader's Trap print #14
Looking for R2 Prototypes MOC's & Cobot too! Also Droids R2 Original Art
I wasnt sure where to post it.
The print on the right is by Cliff Chiang, limited to 100 (retail $125).
It was available for quite some time through ACME Archives (got mine at CV but it wasn't an exclusive). Recently, (within the last 6 months) it has sold out, unfortunately.
See the Galaxy
The Cat Staggs print was $50 retail at CV.
The one on the left is just a poster (other two are art prints) and can be found at various place on the internet for cheap.