How do you say are a great artist in French?

There are several ways to say "you are a great artist" in French, depending on the formality and nuance you want to convey:

Formal:

* Vous êtes un(e) grand(e) artiste. (You are a great artist.)

* Vous êtes un(e) artiste de talent. (You are a talented artist.)

* Votre art est remarquable. (Your art is remarkable.)

Informal:

* T'es un(e) super artiste ! (You're a super artist!)

* Tu es vraiment doué(e) en art. (You are really gifted in art.)

* J'adore tes œuvres ! (I love your work!)

More specific compliments:

* Votre peinture est magnifique. (Your painting is beautiful.)

* Vos sculptures sont très originales. (Your sculptures are very original.)

* J'admire votre technique. (I admire your technique.)

Remember to choose the phrase that best fits the context and your relationship with the person you are talking to.