He's trying to draw in an off beat "cutesy" artstyle. It's a big thing with the trans and furry lofi art communities on discord. Think of the kind of stuff adjacent to sewerslvt or the boykisser meme. It all rhythms with the archetype of low esteem men getting into anxious cylces who then end up surrounding themselves with other discord friends as a coping mechanism and outlet, but those same people who are highly receptive to their worries (and, woah, they are even flirting with pathetic guy like me!) trade their baggage in return. Then the guy starts getting more involved with their interests and what do you know they like quirky music, interesting art and are refreshingly open about porn. If that pathetic guy is an artist they will soon take inspiration while being egged on by their "alty" friends to do more and more. Then the cycle of egg cracking starts, because those exact same people who have become that guy's "friends" don't just like pornagraphy but also include it as part of their lifestyle which then gets pushed more and more on the guy. Overtime the he picks up the same habits and interests as these people and starts to see these groups as a big part of his identity, so he starts to conform with the desires and wishes of people who at their core are just as low in esteem as he is but make up for it with sexual gratification which he will fill. He will either crack or he will become a chaser for "cute" guys or "enbys" as he finally told about the pink or furry pill by his friends and takes it as a serious cool alternative for his life and not a confession of nerfarious intentions by people he knows online.
Shen is falling into that archetype and his art is an indicator of his gradual downward spiral.
Or maybe he just sucks, that could be true too