Again, now that I've finished to read this part in the manga and I don't fear spoilers in comments anymore, I would like to leave a message for you as well.
First of all, the artwork is gorgeous... I love these three, my fave characters in the manga and you captured the atmosphere of the flashback really well! I love all your OP fanarts, but this is one of the best imho.
Same here! ^^ The way Oda narrated it made it universal, and I'm going to explain the reason of that in a One Piece analyses/essay I'm writing... I'm writing fanfics and soon I'll make some OP fanarts myself too, I'm quite obsessed lately!