OP definitely has a female...
Males and Females can both have pointy fins. Males and females can both have not so pointy fins. It may be a little more common in males. Pointed fins is more of a dominance thing than a gender thing. And since males are generally a little bigger and a little more aggressive, they tend to be more dominant.
Females have "blue splotches" on their lower gill plates. Males are more usually blank, but can have spangles on the lower gill plate. Deadeye's male is an example of an unusually large amount of blue spangles on the lower gill plate.
Now we get to have the debate of the difference between a blotch and a spangle...