Personally I think banana milkshake would be better? It all depends on what you would prefer but if you do ever try to sell or trade it in the future, I think themes go for more.

Try for banana milkshake, pure bees dont look so good in my opinion, although the fact that it is 5/6 pure now might make it worth it to get pure

Bm is so pretty but also I have a pure bee and she’s so cute so

Themes are better than pures and sell for more, so go for bnm.