Strange analysis from dpr on some points.
"So don't expect a future full frame EF-M mount camera - it's not going to happen."Of course not. EF-M lenses don't cover full frame image area. Still, this says nothing about Canon developing or not-developing a full frame mirrorless camera.
"As you can see, eliminating the reflex mirror and optical viewfinder has enabled a dramatic reduction in size." The "dramatic reduction" in size is most probably also related to the lack of grip, flash, external controls, probably weaker battery...
By the way, I fail to understand why so many mirrorless camera have no built-in flash. Part of their interest lies in convenience. Needing an external flash is all but convenient.
Sharp or not, it is a great picture. The colors are marvelous. The "pose" of the birds and your framing really works. Congratulations.