I see you are routing tracks on the top copper layer underneath the RN2483. I always try to avoid this because the RN's datasheet says: "Note: Host PCB top layer copper traces must have solder mask to avoid shorting test pins on the bottom of the module.". But I'm sure wherever you let them manufacture will coat the PCB with a good solder mask 
I made a similar board with an Arduino Nano on one side and the RN on the other. Also had the header pins of the Nano clashing with the RN. My solution was to surface mount the Nano, rather than using the normal through hole header pins.