Help I need to do Rainbow High dolls into these characters

https://preview.redd.it/m35gjj7vogne1.jpg?width=703&format=pjpg&auto=webp&s=fb11ab5b2f133c4c1eae83a4db24c8c67a9a2596

https://preview.redd.it/jucu6i7vogne1.jpg?width=842&format=pjpg&auto=webp&s=0037e2e5e781a2c94f07581444313840269721d4

https://preview.redd.it/vs2n0rf0pgne1.jpg?width=1530&format=pjpg&auto=webp&s=d9037b65e2a809496e85342b7990d46df7eff62f

https://preview.redd.it/m6dfngcdpgne1.jpg?width=727&format=pjpg&auto=webp&s=60783b83e8b2d9756d2c823db987d57f02701878

https://preview.redd.it/zfv0yfcdpgne1.jpg?width=1597&format=pjpg&auto=webp&s=04005b278f949cb71426b7106d2fae67c3a9c4e5

https://preview.redd.it/cb4hoicdpgne1.jpg?width=800&format=pjpg&auto=webp&s=7ce41709bb2cd53f4252d52e6b013ebd63c9bfd6

How can I do the ears and tail for these Fire Emblem characters using Rainbow High dolls.

https://preview.redd.it/twtqg5lopgne1.jpg?width=1230&format=pjpg&auto=webp&s=75005fc82a47fce080e66c4ec9ecca9a0205bee1