Yeah, the motors are decently well exposed to the airstream. That thing is going to be a rocket ship! Be prepared to fly it fast, the wing loading here will be significantly higher than a usual config.
Make sure the battery tray is really in there and able to support the extra weight. Do the same with the landing gear - you may want to double up the strips on the main gear axles and beef up the nose gear structure (thicker wire, reinforcement from the top of the gear structure to the sides/top of the front fuselage, etc.) The area where wing mount skewers attach to the fuselage could be reinforced (Add wood/plastic doublers if you haven't already), and you'll probably want to use either more or stronger rubber bands to attach the wing to the fuselage.