This version is, unfortunately, not just the only version I could find, but also more than likely could be considered a third-party edit because some artist ended up using it as a concept piece...and left marks (most notably her name, in Korean there). If the original, unmarked version is located, please let me know.

Hm. Okay, so, the pin itself links a Twitter image, and with that and Ascii2D I got this: https://twitter.com/byunddd/status/1216928392827699202 (media asset)
But I see nothing that would connect this to any Chinese artist whatsoever. Unless you mean the source for that bottle thing? In that case the oldest source I can find is this Indulgy page. But Indulgy itself is a Pinterest-like site, and links Rubylane as a source, more specifically this page, which indicates the item has been taken down.

Also, there's a more finished portrait on that Korean artist's Twitter: https://twitter.com/byunddd/status/1278560675803979776

But I see nothing that would connect this to any Chinese artist whatsoever. Unless you mean the source for that bottle thing?

Ah, due to having uploaded things like (the unfortunately deleted) post #6901243 beforehand (who has done a fair share of posts like these, and has a similar artstyle), my mind had ended up concluding that this was another of their posts. It seems that is in fact not the case, and who I was talking about in my original comment is in fact the original artist signing her work like normal. My bad, but thank you for finding the original source!