The word esthetic is also spelled aesthetic, so don't be confused if you see it written both ways. It's a word to describe someone's idea of what is beautiful.

Is esthetic correct?

You can you use both. The main difference between aesthetics and esthetics is that "aesthetic" is used in British English while "esthetics" is used in American English. Aesthetics is a philosophical study that deals with the nature and appreciation of art, beauty, and taste.

Is it aesthetic or esthetic?

The fundamental distinction between aesthetics and esthetics is that "aesthetic" is used in British English, whereas "esthetics" is used in American English. Aesthetics and esthetics are two terms frequently used to discuss ideas such as beauty and taste.