I have both. I’m keeping bothT
I have both too.I prefer the B1 - the art is 'fuller' (less cropped/cramped) and the printing looks sharper (although I don't think I've ever compared them side by side to fully confirm that). I think the Aussie will probably always command a higher price because of the English title though, so if you need to raise funds, maybe sell the Aussie one sheet?
I own almost 2,000 Japanese posters, B1s and B2s, so obviously I’m a fan of the designs, but for this specific design, the Aussie 100%, no question. Just better layout, imo. But I would still keep both. They’re great posters.T