XD My current avatar is more of a joke than anything else. I was watching the Beatles cartoon (which is fucking terrible), and the awkward cut to... that, as a still image, literally made me laugh out loud. XD I took a screenshot of it and then half-jokingly said I was considering it as an avatar, and then I found what is now my signature gif on Tumblr and I thought they would be a good match. XD
I don't feel like hunting down most of my previous avatars (since I'm not even sure if I still have all of them on my computer), so, hopefully you guys will at least have a vague idea of what I'm talking about when I go through some of these past ones. XD
The avatar I had before this was angry Lapis Lazuli from Steven Universe -- because the episode 'Barn Mates' had just aired, and I found Lapis's expressions in that episode to be incredibly amusing and highly relatable. XD It took me a while to decide on just one, actually.
The one of Paul McCartney holding up a question mark with that sad expression on his face was one that I kept seeing around Tumblr for a while, and at first I just thought it was funny, just seeing him with that defeated expression on his face and always without any context. Over time, though, it became more and more relatable, so I eventually made it my avatar.
Then there was the one of Amethyst from Steven Universe wearing shades and giving a thumbs-up. Amethyst is one of my favorite characters in the show because she has a lot of personality traits that I wish I had -- just being so laid-back and chill about everything, thus allowing her to have this cool persona without looking like a nervous wreck all the time. And that one screenshot of her just seemed to embody that so well. XD That's probably the most meaningful avatar that I've had recently, though.
All the avatars that I've had in recent memory were all either Beatles or Steven Universe related... I guess I just like making avatars out of things that I like and that I find mildly relatable for whatever reason. ¯\_(ツ)_/¯