Hi Scott,
We have been discussing your three designs and are drawn towards 21 and 18, finding it difficult to separate, have you tried the dots on top of 21, we are not keen on the shadow on 21.
Could you have a think about these two designs and see if you can combine them in some way, i think the more we look at all three we move away from 17 in favour of the others.
See where your thoughts take you, but good news is you are up there in the top 5.
regards
Phil