Alright, well, I'm one of the few people that likes shirt and tie without a jacket, so I won't give you flak about that, though others probably will. If you are going with that look, you need to make sure you have a fitted shirt (the shirt seems to be billowing a bit at the belt line). The tie needs to go perfectly with the shirt, as you won't have a jacket to pull attention away from it. In this case, your tie is lighter than your shirt, something which is generally a pretty big faux pas. Your pants also need to be very nice (again, no jacket to distract); in this case, it seems like you are wearing old pleated khakis. And your belt looks like it has seen better days.
Black shirts are fine at night, but will rarely look good with a tie.
Avoid pleats (unless you need the extra room)
Lurk around to get a better feel for tie-shirt combinations
Dimple your tie.
New pants, new belt
Keep the Stitchy beard...we need more beards.
Edited by Claghorn - 11/7/12 at 7:21pm