Trimeresurus and Bungarus Id trouble

Having trouble with IDing the Trimeresurus and Bungarus genus, i’m wondering if there are any key areas in the scalation that I should focus on to get some more clear and concise IDs. still confused on the key areas to focus on.

I usually tag one of the top identifiers with a request to contribute on an observation. If they are responsive, which they usually are, I then ask for resources on how to identify better. This works great for me!