Really nice work! For #19 we love the creativity express by the logo while still being very readable as '4b'. Having said that, we would like to see thoughts about the logo being larger, the '4' more apparent and not as 'light' on 'design group'. Originally our own doodles used lower case b's but your design using capital B's is really nice. Would be interested in seeing your thoughts using lower case b's. Not a fan of the isometric logos (#59) and are concerned there is too much negative on #20 & #21.
Thanks! I was a bit concerned about the "b"s looking like "q"s when rotated, but I'll give the design some thought and show you some revisions based on your suggestions.