The castle of darkness in the sky

Hello dribbble
I am a UI designer from shenzhen. Thank you for @michaelyeah 's invitation code
What I'm talking about here is my design idea. Dribbble wants to have a mysterious community, where there are many great designers.Like a castle in the air, it has a sense of mystery.
This is a small attempt, in the future will definitely take time to do each design.Thank you