Hi! I'm Plague and I'll be taking a look at your draft.
Hmm. Overall, I don't think this is working in its current form. There isn't enough substance for me to latch onto the anomaly or Lewis. I think the two main concerns I have is the barebones story and pacing. You could definitely draw out the description a bit more to really set up a melancholy tone along with characterizing the anomaly a bit more. I see what you're setting up, with Lewis' art being spread as she wants to give joy to people, but I'd rather it be a bit more explicitly shown.
Your emotional core feels artificial. I do want to connect with Lewis and her experiences as an artist, but a single note is not going to do that for me. This reminds me of a wholesome version of SCP-5462, however, what is done in this one is carry the breakdown of Goya through his rambling notes.
My advice to you is to expand out further. For things okay as it, your writing is clean, clinical, and I saw no fat that needed to be cut.