1. If you have your props on, take them off *immediately*.
2. Your connections look okay. You probably need to throttle calibrate. Here are the steps
a. Turn off the Rx
b. Move the yaw pot to zero (it may be clockwise or counterclockwise on your board. Try it both ways to be sure. On my board its clockwise)
c. Put the throttle to max.
d. Switch on the rx. The LED will blink 3 times rapidly.
e. Immediately, bring the throttle to zero. The LED will blink 3 times to confirm (very rapid, looks like a single blink). Motor will beep.
f. Turn off the receiver. restore the Yaw pot to whatever values it was earlier.
g. Start and try to arm (make sure the props are off).
3. Hope that helps. More info
http://www.kkmulticopter.com/downloads/resources/KKmulticontroller%20v.5.5.pdf. Check steps 2 and 4
GS