Yoshi Yu is an artist based in Hong Kong, her youtube channel is mainly about 'new age', 'spiritual', 'magic'. I used her favorite - mermaid as one of the key elements in the video.
Pastel colour tone can definitely represents the character of Yoshi Yu, she is cheerful, lovely, cute and positive.

I used bubble to contain the words 'Subscribe', ' Comment', 'Share', and 'Like'.