I tried to determine the exact horizontal and vertical tilt of the drone in PIC0016 by overlaying a simple 3D model and here's what I came up with:

Not exactly a perfect match, but close enough considering my poor 3D-modeling skills and simple (free) 3D application that I used. Drone size doesn't really matter here, but I used 4m diameter for drone ring (from my previous calculations of Chad's drone size) and set it on the appropriate height (36m) so it fits in (barrel corrected) PICT0016. As you can see, the drone indeed is slightly tilted relative to the ground level.
I didn't intend to analyze shadows, but tried to set proper sun angle anyway and - like others - failed to match shadows in Raj's image. But can sun really be simulated with some infinitely remote light source like it's done in similar 3D programs? Here's what I think really happens with light and shadows in the following situation (I used somewhat wider angle to show assumed position of the sun in relation to the original image):

Note that there's no shadow below the large paddle and that top crossbar shadow also fits Raj's image. So does it really matter how far is the sun or is it just about how it "sits" in the image perspective? Hope we'll be able to verify this once HPO's model is ready...
EDIT TO ADD: I was wrong about the shadows, check my next post...