Disclaimer: This is just a guide to give you an idea of what your coin might grade. Often coins will grade higher on one side vs. the other. In example, it's possible for a coin to grade G4 on its obverse, but grade VG8 on its reverse. Also, this guide is not a claim that one's coin will obtain any grade listed if submitted to a third party grading service.
The Flowing Hair Half Cents mintage was plagued by poor copper planchets and striking issues. In addition there are different design changes through out the 1794-1797 versions. You have the high relief, lettered edge, no letter edge, different size heads and heads at different angles that can't play a factor in the grading of a coin.
So the images below serve as just an example for the grade and might not mean your coin will be the same grade. With this in mind we created a seperate page with grading examples for the different size heads here Flowing Hair Half Cents. I urge you to consult both pages to better ascertain the grade of your coin.