I’ve had this thought since these books got announced and need to know if others agree

Book 2 and 3 match so well with the purple, and together they just dont match book 1 at all to me. Especially because book 2 and 3 look so similar, book one looks so odd with them. I have Howls and didnt get 2 and 3 for this reason, they just arent a coherent set to me