Either the percussion or strings, specifically cello section.
The percussion section often provides a repeating rhythm or ostinato that holds intact the rhythmic meter of a piece played by the orchestra.
The cello section will play important down beats and roots of harmonic chords that spread within the different part of the orchestra. 
        
                    
             
        
        
        
I would say line and value
cuz it looks very valuable but also all the details are part of the pattern
        
                    
             
        
        
        
Answer:
The images both use texture, this is because the images looks like it would feel like something. They are different by the texture as well, one would feel bumpy while the other image might feel like a human. The similarities are, they are both in their own art style, they have the look of a texture, they seem 3D, both seem to be done in pencil, and both are portraying an emotion. 
Explanation:
I really hope that helps ^^ (also id.k if the 'BW 3/11' is important or not sorry)