This sans-serif composition is successful because of how it used negative space, scale, and focal point. 
Negative space gave the composition some breathing room and helped show grouping. Scale gave the piece some contrast and variety. The focal point helped give clarity and direction to it. In Conclusion, using negative space, scale, and focal point helped create this successful composition.

This serif composition is successful because of how it used alignment, focal point, and contrast. I used the alignment to give order with the B, E and 8 characters. I used focal point to give direction to the piece. The contrast is shown throughout the black and white glyphs. In Conclusion, using alignment, focal point, and contrast helped create this successful composition.