Some of you might have seen this from the recruitment post (we're still looking for work!), but my sister and I have been doing some background practice. We've been posting updates on that on our
Twitter and
deviantArt. Just in case they might come in handy, we've decided to release them for public use at the usual price of nothing!
You can download the full-resolution from our
sta.sh gallery, or view everything on our
website. A summary of the terms of use:

Everything is free to use for both commercial and non-commercial
DERIVATIVE works. All original VN projects fall under this category.

No permission or attribution needed! Although, if you're a sweetheart who likes to credit, you can attribute it to neeproject.

Modifications are ok to the extent that the dignity of the original artwork is preserved. Filters, minor re-paints, all fall under this category.

Other usage we allow include tracing/using as a base, if you like that sort of thing.
Thanks for taking a look and comments/feedback are all welcome! We'll continue to update our website as more BGs get finished.