50mm frame quadrocopter

This is my next attempt to design a micro brushless quadcopter 50mm from motor to motor. I also did not print this thing !!! (i don't have a printer). Yes, and I have not yet figured out how the camera will hold)))
Parts that are useful for assembly:
Brushless motor 11xx series (DP03 inserted in the models will also be 1103) like this: https://www.banggood.com/ru/EaglePower-SA1103-Lite-1103-6000KV-8000KV-10000KV-2-3S-Motor-for-RC-Drone-FPV-Racing-p-1242994.html?rmmds=search&admitad_uid=0403be435bda383301660ff9fdccd75e&ID=528717&cur_warehouse=CN
Flight controller with built-in receiver and 4 in 1 ESC like this: https://www.banggood.com/Racerstar-Crazybee-F3-Pro-Flight-Controller-Mobula7-5A-1-2S-Compatible-Flysky-or-Frsky-or-DSMX-Receiver-p-1361634.html?rmmds=search&ID=529569&cur_warehouse=CN