Pixiv:

🥔🍍

まとめ！(一部別垢にあげてたやつも有)

Twitter/X:

出勝💚🧡

Pixiv:

🥔🍍

Collection！(One part is stuff that was posted on a separate acc also)

垢 (aka, lit. "dirt") is internet slang for アカウント (account), used phonetically
有 is an abbreviated/stylized way of writing ある/有る ("there is/are") with its okurigana dropped

Twitter/X:

IzuKatsu💚🧡