Well, I keep looking for icons that represent smells, and haven't found much. A cohesive set of scent icons might be useful: roses, rotting meat, campfire smoke, cheese, damp earth, garlic, pigs, pine trees, fresh citrus, rotting fruit, dust, you name it!

did someone show up on discord asking for visual olfactory effects?

in all seriousness tho, your pixel portraits are very nice. anthropomorphic animal portraits would be great. your bunny girl sprite is cool too. try making oga mascot sara in that style. more "girly type stuff" like that would be cool, it is an underserved aesthetic. no offense or gender-normative discriminiation is meant by the phrase "girly type stuff" i just don't know what else to call that art style. but it's cool and you are good at it.

^that too. Even more and varied portraits (not just girls) will really diversify the stuff you've already shared. :)

Hi, your art is realy interesting.

I don't really play or make games, I'm more into RPG forumes where you have a avatar to represent your character and use writing to comunicate with other characters. 

But game assets sems to be a good resource for that too. Finding characters and environnements for the stories.

So, have you, ever tried to make various animals like cats, dogs, horses, deers, camels, llamas and whatever other animals that comes in minde ? It could be interesting too ;)

Fantasy and Sci-Fi mouse pointers, arrow, hand, sword, lock, etc... may benefit the assets you have already created.
Spell / ability icons perhaps?
Platformer level sprites?
Animated terrain / waterfall?

Jsut some ideas that came to mind whilst browsing your assets.
Keep up the good work!

some more UI sprites matching what you got there (sci-fi/modern day/medieval etc) would build off of that well