Gotta disagree with the calf comment. You have damn nice calves, especially since black guys sometimes have difficulty putting size on them. I'm really amazed that you have gotten so lean while only losing 15 pounds or so. Your waist looks to be down to about 32 inches, huh?
Good questions. Make sure you pee right before going onstage so you've got the least amount of fluid in you and you'll be more comfortable also. Make sure you are pumping up right before they call you to get in line to go towards the stage. If you stop pumping up and then sit around, you may flatten out and lose it. It looks like you are going to be really prepared, so go into the contest with the attitude that you ARE going to win. You have done your homework and are prepared, so show it. It may be a small thing, but the judges can tell who is confident(I didn't say cocky). I'm assuming you will have someone with you to spread oil on you and make sure everythings in place before going on stage. Good luck and let us know if you have any other questions.