Jay is right, it is kinda hard to tell the specific details from that picture, but the one thing that IS clear is that you have a really great foundation for what you want to do. I am slightly jealous I won't get the opportunity to train you with your great start, and also slightly turned on... Sorry, couldn't help it
Regarding the arms that you voiced concern over, if you are concerned about them then I suggest tri-sets for your workouts:
Take a goal bodypart--say chest for example--and then sandwich your compund movement between two isolation movements. Eg: cable flye, bench, dumbbell decline flye. This will limit the amount of weight you can do for bench, but it will make sure the stress stays on your chest and away from your arms. You can do similar things for your back, as well as shoulders. Isolation, compound, isolation. (eg: dumbbell lateral raise, shoulder press, lean away cable lateral raises).
Right now, however, and from that one "awkward" picture, I don't think you need to worry about the arms. A) once you dedicate yourself to a contest diet you will see that they probably have a tendency to shrink noticeably and B) I completely agree with Jay about separating the boys from the men. I think you look great. DON'T pay attention to boys who are intimidated by you because they are insecure. Guys love your current build.
Train hard, avoid trap work, concentrate on hamstrings and back which are often the deciding factors in figure among close competitors. Most trainees I have met--everybody, but particularly guys-- have a tendency to puss out on the hard hamstring work. Don't let that happen.
You have a fantastic start and look awesome, athletic, and sexy. The athletic build is the most widely appreciated build in figure. They're not soft bikini bimbos or freakishly manly men in wigs. An athletic build is ideal for starting the sport . Find a figure competitor in your area to learn posing from if you decide to try competition.