#13 is interesting, but #14, #15, & #16 show that it does not translate well to a reduced or single color version or in gray scale or black & white very well.
#55,58 & 59 are defently the direction all of their facet lines are blurry these are the lines in the diamond that represent the facets the need to be solid black or dark blue, if you really want to hit it out of the park i would try to enlarge th flame in #58 so it fits the top of the diamond and place in on the table
please have the diamond at #74 match the size & location of the diamond at #55 in addition regardless to this resaults of this event i like your font work please e-mail me after its all said and done i have some work that i think you will ace ben@sundiamondusa.com