There is consistent proximity throughout the logotype. The negative space forming the "N" makes sense with the name because looking at the logotype engages the audience when locating the "N". I also think the logotype font works well bold.
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This standing bear logo makes great use of negative space. I love the way that you have the big black bear, but the room where it's legs are make up a bear cub as well. Very effective use of negative space.