Hi,
Nice PCB, not crowded.
Some advice about PCB design.
You need to make sure your tracks are wide enough to carry the current?
Your servos will pull up to 1A at times, you need tracks to carry that current.
Keep your power input connectors as close to the high current demanding components, such as the SERVO connectors.
Your LED needs a series current limit resistor.
Put some test points on your PCB, GND, 5V, Servo signals, HM10 signals.
Put some 0.1uF bypass capacitors on all the 5V, 8.4V, RAW, gnd pin pairs of your connectors.
The thinner the tracks and pads, the more likely it its for them to lift when soldering.
ONLY make thin tracks when necessary.
[soapbox]
You purchase a blank PCB loaded with copper.
You design your PCB, allocating areas to have copper removed.
The PCB manufacturer will remove YOUR COPPER THAT YOU SPENT MONEY TO BUY.
You will get back a PCB that has LESS copper, and you PAID the manufacture to do it.
The manufacturer will not give you a discount for the copper he has reclaimed.
[/soapbox]
If this is your first try, good attempt.
Tom... 
