Really like #72! Very simple and i like the shape for the box containing the quill tip. Rounded corners make it feel similar to an app icon. #71 was very similar but liked it better without the dot.
#28, #29, and #31 I am not sold on, I think mostly because of the color choices I made in the description, which after looking at a couple of designs, can visualize myself using the white/red/black combo