Need help recreating effect

Kyuby

Hey guys, I am working on a character and I wanted to create a similar effect to the one in  ahri skin KDA but in marmoset, an effect in wich reflecting light makes the model change color, any ideas? 

Ex. 

https://www.google.com/search?q=Ahri skins kda ingame&tbm=isch&tbs=rimg:CZlRy1PMhgXgIkCwpcHp1qUzuzJIye0yf6nHFY6dyHpZK_1YfL4kSFVqQDOHSPMTeAo7u72E6SpJwOPbFG5OA5XopJcEc97n63Ow0KhIJsKXB6dalM7sR7bPqkShVvhkqEgkySMntMn-pxxHmrlAJ7zuCvCoSCRWOnch6WSv2ER1O9s5SgA8gKhIJHy-JEhVakAwRUDFv58nHrDQqEgnh0jzE3gKO7hGma1l-TEa9uCoSCe9hOkqScDj2EXULCjqd03C2KhIJxRuTgOV6KSURA5o6f4-CChgqEgnBHPe5-tzsNBE4acJBltX4DWFvXw6hMNo0xQ&client=ms-android-huawei&prmd=isvn&hl=en&ved=0CBoQuIIBahcKEwjInKe1lv_pAhUAAAAAHQAAAAAQIQ&biw=360&bih=598#imgrc=VxlXfs-C7lkgvM