Reason why this geometry of landing gear is only to protect battery. Also the geometry of motor holders protect propellers during landing. Reason why distance betwen left and right side in compare with front and rear is not the same is to reduce front area during flight. Vertical arms can increase eficience of propellers and also cooling of speed controlers and electronic. Imagine, how airflow looks like during speed flight when drones are under 45 degrees angle. I think the area of vertical parts is not so big to have effect for stabilisation of flight.

Great design! I would love to fly that, i'm so curious about how it turns. I think the landing gear are pretty heavy looking, but i'm wondering if they affect the handling in flight. Did you put them there for flight stability, or just to keep from landing on the battery?
I like the way that you used vertical sideplates to hold the camera. Lots of the vertical arm designs i've seen have a top plate parallel to the stack, and that seems durable, but also like a missed opportunity to add more vertical stabilisers.
So why are the left and right side so close together, the props are nearly touching? Does it accentuate the effect of having all those vertical plates when you put them closer together like that (I assume you cannot know the answert to that untill you test it, and some other vertical arm frames, but you might have done that already)
When you roll do they interfere? Do you have lots of propwash handling issues on the roll axis?