It may be worth reaching out to 'PREDATOR-ASSASSIN’ over at deviantart (the artist who put them all together) - he may still have the individual larger / HD images:-
https://predator-assassin.deviantart.com/
He also has a few other quality Star Wars pieces on there too…
Good luck with it man - please post up a link to them on here if you find them (and one for Solo too) 😃