Finnish to English Art/Literary General / Conversation / Greetings / Letters

I have been asked to give my opinion on a translation about an avant-garde piece of architecture. One of the sentences reads:

Rakennus on niin teoksellista ja poikkeuksellista, että sen kautta oli helppo alkaa muodostaa käsitystä siitä, mitä arkkitehtuuri ylipäätään on, kun aloitti opiskelut.

The problem word is "teoksellinen". Presently the translation is "The building is so fashioned and exceptional, that...."

Teoksellisuus is more often used in philosophical texts, translated often as "textuality" or even "the working of the work".

Any comments welcome!