Excellent wing reference here. There’s a lot going on here that’s hard to identify in a fully-feathered adult wing.
Note the tendon running from the shoulder to the wrist. That’s the reason a bird’s elbow is not nearly as visible as a lot of artists tend to draw it.
Also note that the flight feathers stop at the elbow! This is the most wtf thing I ever learned. The feathers coming off the upper arm are just filler. The elbow is normally held close to the body to hide the gap.
These two things will make your wings 1000% better. And they apply to non-bird winged dinosaurs as well!
reblogging for (1) great reference (2) great scream