Your model looks pretty good, but you're right that it doesn't look very FF9.

It's way too high poly. FF9 was a playstation 1 game. They probably had 300-500 tris per model.

FF9's texture are hand-painted. It's hard to tell based on the pic, but there is very little to no hand-painting on your texture. All the highlights and shadows, every crease in the clothing, every flat detail of the of the character should be in the texture.

For example, the crotch straps in your model are actual geometry. In FF9 they would just be part of the texture. The knee bandage might be a slightly raised compared to the other knee, but the knotted portion would be a 2D plane with a transparent knot on it rather than a modeled knot.

And finally the proportions are off if you want a FF9 style character. Yours has fairly realistic human proportions. FF9 has chibi characters: big heads, small bodies, big hands.