Welcome to BTP Tiger-
You are correct that 3100 hands is a very small sample, so take the numbers with a certain degree of caution until you reach at least 10k hands, and some would say more. That said, your numbers look pretty good. They are similar to mine, and I win at 1.5BB/100. Some of the others might have some insight as to where you might improve.
A couple of thoughts: Your VP$IP is about 1-2% lower than mine, but should be fine. Your VP$IP from the SB is a bit high. You may be leaking a bit there. Your post-flop aggression numbers are a little lower than mine. You may be missing bets. I think that your limp/call Reraise pre-flop number should be zero, unless you are planning a limp re-raise yourself and it gets capped before it gets back to you. That has not happened to me yet in over 50k hands.
Hopefully others have more to contribute, I am still learning the ropes too.