Elise is currently my favorite champion — love her to bits and I have even managed to lane mid and top with her after struggling in the past to even jungle, which is an accomplishment for me. With that stated, I was in absolute love with the skin when it was first announced, it reinforced my love for Elise and I started playing her frequently again even though she was hard to use and got WAY better than before.
Now, speaking more on the actual design: I prefer the pink.
Though she looks absolutely stunning in both colors, the pink fits her more and it reinforces that Blood Moon isn't actually just about red. People seem to forget that Blood Moon doesn't actually just correlate with blood (red), but I suppose all the previous designs going for the more masculine Kabuki color of red is to blame. However, with that said — despite the other skins being red, Kalista's has shades of maroon, magenta and purple such as along her waist and armor which could give room for Elise to serve as the "Blood Moon Queen" as if she is in some kind of higher rank in lore so she garbs a more elegant color.
To complete a nice aesthetic, they don't actually all have to be the same color which people seem to not realize with Kalista's design and just seem to complain because Elise is full out pink in her own right. Again, the red is stunning, but these skins are not always going to be played among one another, so that is why I vote to keep the original color that matched so perfectly with Elise, Blood Moon and her particles. I'd rather have this unique colored skin instead of having two red skins and two blue skins for Elise. Not to mention, the pink spider form is FAR superior to the read. The skin was made to be pink. It matched the tone of the line of skins so well and made Elise stand out like she should.
Despite my reasoning, I respect the designers choices but I do hope you guys in the end, stick with the design you originally had planned out that fit her a lot better than the current coloring. I will without a doubt, buy the skin regardless of the choice in a heartbeat, but I will use it a lot more frequently with the pink color.
Long live The Spider Queen!