Answer:
Clay 
Explanation:
Clay is the most common modeling materials, and the artist's hands are the main tools, though metal and wood implements are often employed in shaping.
Hope this helps and mark as a brianliest 
 
        
                    
             
        
        
        
It depends on which type of leaf, but I'll try to show you a simple one. I found this picture, I hope it's useful. 
 
        
             
        
        
        
Probably music or some sort of fashion related art