Answer:
Flagellation of Christ - Piero della Francesca
V*rg*n of the Rocks -  Leonardo da Vinci
The Peasant Dance - Pieter Bruegel the Elder
Explanation:
All of these are notable works that you can easily find more information on by researching the name of the peice.
 
        
             
        
        
        
He might be using cement you can look up what it is but I’m pretty sure that’s it.