Just do what you like and enjoy, the best art in my opinion comes from enjoying it.

Possible aspects could be multi step TF´s or going more into the detail of the changes that are occurring at the moment.

Though I´m no critique or expert in a long shot as such, those are just my two cents.

Do some car tf.. it'd be a gas to see..

/r/ing inanimate tf

Tubecent

Flotsun!

I really like how you rendered shadow and squish in your Trivbofication piece, so leaning into that is definitely a good thing.

Other than that, little self-contained narratives are a good way to make pieces interesting; even single images can hint at what happened to cause them or what will happen in the future.

I think your TFs are really good as is! I would personally love to see your style applied to sequences, but if you prefer doing single images - you really capture the motion and shift and often the confusion as well; I don't think there's much of anything I can advise to spice it up!

More P TF, more pooltoy TF, more "even" anatomy (i.e. less giant butts/thighs/boobs to the exclusion of the rest of the body). Also, sequences/backgrounded TF/post-TF scenes (or mid-TF in public with people reacting to it).

Oh also more LINING and COLORING. Especially the Lunas and Celestias. Do it or I'll sketch a forbidden Panne.

Posting them :^)
But uhhhh idk, honestly all I can think off is just different scenarios, like unaware of changes taking place while bystanders are shocked or different topics I am not sure you like as much like tg.