Hi,
Could you take a look at entry number 10 from another designer. Would you be able to use the column graph (the 3 vertical lines) concept that they have used and apply this to your entry #6, so that you replace the 3 x horizontal lines with 3 x vertical lines like a column graph and then still keep the 'tick' sign, but perhaps make it slightly smaller, also use the C A P I T A L as per your entry #4