When you say "better," do you mean "I should be doing this instead
of what I'm already doing?"
I wouldn't use Tumblr as my main archive. Some people do, but I don't like it. I use it mostly as a subscription method, and (I hope) an advertising method, but people have to click through to get to the comic. I also have a story-driven comic and seeing one page on the #webcomic tag may not be enough to grab someone's attention (depends on what the page is).
Some comics do better than others on Tumblr. Mine doesn't do well. Yours might since you're doing a fan comic thing, so people who already like Link & Zelda may look.