Hi Emily,
I really love the personality I am getting from these two concepts, the second one is very cute and I can tell the amount of creativity flowing through out it (On my second viewing: I just now noticed in your style sheets that each version's color scheme is based on the illustration included--very neat idea

)! It would be very cool if you were to program the ability to click on one of the pink windows and bring it to the front to add to the level of engagement and to not overlap over any important or necessary information (for example on the home page, I think the best work around with this is if you make the top two lines related to knowing more about Vylet, while the rest is song lyrics--maybe with them even in a different color). But this is only a small suggestion since I do adore with how it looks right now--reminds me of my old Tumblr days

!
I also do like how each design juxtapose each other, whereas the first version is softer, mellow, and albeit a little bit gloomy due to the blue-ish hues white the other one is the opposite, so I am very excited to see with version you will be going forward with in the final! Overall, very great work on these prelims!
(P.S. If you like MLP, I suggest checking out Jane Gumball's work on Twitter & Youtube
, they have a little series about transforming the mane 6 into their nightmare counterparts that's really worth checking out, here's a link to their Youtube channel: https://www.youtube.com/@JaneGumball)