There is a continuous transformation in Petrus’s painting which, however, at times is elusive because the coherence of his themes can be deceptive. […]
We have the idea that Petrus has always painted buildings. But how has he painted them? A brief digression about his development might help us to understand the differences that exist in his work and that testify to the anxiety behind an art that is incapable of being comfortable with repetitions and formulas.

Elena Pontiggia