I did a retopo of my character's head and was wondering if there are too many polygons if this was to be used for a game.

There are 1,434 triangles (for the head mesh alone).
I haven't finished modeling the body yet, but it seems like it'll go over the 5-6k which I think is the ideal range for a game character.
Any suggestions on whether or not I should reduce polygon count?
Thanks.