How to be successfull ui designer?

Hi Everyone!So week ago i decided to Open UI designer Commissions But sadly i got one guy who wanted something from me.am i doing anything wrong?
My portfolio is [COMMISSIONS Closed!]Ui Designer,GFX ARTIST,Programming Portfolio
I know i dont have that much works because I worked for someone only 1 times
What can i do.

Thanks for reading.

your not doing anything wrong your UI is high quality and in a super cheap price i hope you are safe!

It takes some time for people to find your portfolio. If that one customer likes your UI they can spread the word about your portfolio.