temperament

I have it by nature.

私は気質を生まれつき持っています

I have an artistic temperament by nature.

私は芸術家的な気質を生まれつき持っています

I have an artistic temperament by nature in the studio.

私は画室で芸術家的な気質を生まれつき持っています

I have had an artistic temperament by nature in the studio since I was small.

私は幼い頃から画室で芸術家的な気質を生まれつき持っています

I have had an artistic temperament by nature in the studio with my older brother since we were small.

私は兄と幼い頃から画室で芸術家的な気質を生まれつき持っています