I was brought up in a family of avid hunters and fishermen (although I find fishing boring and prefer target shooting over hunting), and here are some things you might want to add:
Size.
Weight.
Distance for hunting.
More details on gear used.
The place where the game was caught in addition to the home town of the sportsman.
On question here is do you want to do this free form, with perhaps some suggestions to the user, and then have to police abuses (e.g. anything that passes a profanity filter) and have things look a bit irregular, or do you want to try to limit and regularize the inputs?
If the latter, type of lure or load would get onerous and would get really obnoxious for handmade flies, hand loads, etc.
And then there's people like my father who has about 2 12 gauge hand loads he uses for his Browning Auto-5s, for small (dove and quail) and medium (grouse and pheasant) upland birds. If he were the type to put up pictures like this, I'm sure he'd prefer being able to pick from those few options (no drop down lists though!) rather than entering the details each time (I'm sure he wouldn't bother to do the latter).
And, yeah, the profile slider is very nice.
Good luck!
