Thanks for that any rough idea on value please

Can somebody please help me out ? I have 5 posters purchased in 1975 and can find limited information about them. They are; The hill-hobbiton-across-the-water, Bilbo awoke with the early sun in his eyes, Bilbo comes to the huts of the raft elves, Conversation with smaug and The forest of the lothlorian in spring. They are from Camden graphics and in excellent condition many thanks in advance
I can email pics if required but struggle to upload them to forums via my phone