Betrayal can be portrayed as you like. Feelings of pain and mental disappointment can be shown through any pose, gesture, or even the character's gaze.
My Character Drawing
For me, though, betrayal is like a little box of juice, which is also easy to crush with your foot for fun and just forget on the road. What if you transfer this image to people?
Work process:
Step 1
Step 2
Step 3
Step 4
Done!)