Delicious.

How was this made?

Ah, I've heard of it but I haven't used it yet. 

Are those typical filenames for resprite? 

Mostly GIMP. I'm not exactly a classically trained artist. I mean, I make art in the same way astrophysicists "understand" four-dimensional space: they don't really, but they use math to fake the conceptualization of it.

Sure!

• be sure to tag your submissions with as many single-word descriptors as you can. Pizza, basil, etc. THe unmagnified dimensions are also helpful: 190x190 in this case.
• if you have a lot of art to share, it's a good idea to either space it out over several days or bundle all the similar art together into one submission. If too many individual submissions are uploaded on the same day, it pushes everyone else's art off the front page of the site, or it triggers a "front page flood" script that supresses your art until it can be reviewed in case it is spam. (this art isn't spam, obviously, but the script doesn't know that)
• If you use any AI tools (midjourney, StableDiffusion, etc.) be sure to indicate which technology was used and include a link to it in the description. It can be a potential licensing/copyright issue.