Well, it's been a decade since I've done any pixel art, but I was feeling inspired, so here's my first piece in 10 years.
Didn't really pay attention to colour count and could probably optimise a lot, but I wasn't really intending this to be a full mockup when I started.
Backpack Hero is an Indie developed inventory management roguelike.
Check it out if you're interested:
https://store.steampowered.com/app/1970580/Backpack_Hero/
(I'm in no way affiliated with the project beyond being a backer on kickstarter) | 
Would love to see more, but also seems like you're at the point where it's like riding a bicycle. If you ever need the nostalgia hit, I guess!