I happen to be a fan artist myself, but I focus more on video games than anime.
This one is my most recent. It's (Modern) Sonic the Hedgehog showing off the Chaos Emerald he just snagged. This was drawn on blue paper with colored pencils.
This is a little bit older than the Sonic pic. It's every Sonic fan's favorite psycho killer robot. It was drawn with a mix of colored pencils and oil pastels on blue paper.
I did this sometime last year ENTIRELY in MS Paint. It's part of a series of Paint drawings with the same dimensions that I did for each party member in Chrono Trigger. This one, and the one of Magus, came out the best IMO.
Here's the Magus picture I was talking about.
This is another MS Paint picture that dates back to sometime in 2015. Am I the only one who thinks this could almost pass for a Sonic X scene? Maybe it's just the shading.
This is one of 5 limited palette pictures I did in MS Paint in late 2015-early 2016. It's probably my best full-body picture of everyone's favorite edgy hedgie.
This one was drawn in YY-CHR, a program used by ROM hackers to create custom graphics for retro video games. I happened to have left it open after drawing a custom Super Mario World tileset and felt like drawing a random thing. The colors are based on the palette used by Green Koopa Troopas, but with a few added colors.
I also drew this in YY-CHR, and felt like including it here because it seems that the original poster likes the Dragon Ball series.