I make vector traces for fun, feel free to use any of them for your own edits and projects (Wallpapers, avatars, posters, itasha, etc) as long as it's for personal use. A download button is always available for high resolution.
You said you're open to requests for vectors, I thought I may ask if you're open for doing one. Although I understand if you no longer have the time to do requests.
My workflow has slowed down quite a lot when it comes to vector traces but depending on the image you'd like, I could be interested enough to give it a shot. You can link me what you have in mind in a note and I'll see from there.