with your pose? squeeze your glutes and hamstrings as hard as you can and push your pelvis forward. focus on pulling your hands and rotating your arm backwards while not moving your elbows back with them, that will bring your upper back, rear delts and traps a bit more. extend your lower back as hard as you can and keep your chest high. need to open your lats up a bit. focus on keeping your hands over your biceps, aligned the same direction as your arms, like your doing a curl. that will bring your peak up a bit as opposed to twisting them slightly forward. when i first started learning poses i didnt realize how complex it can be to show off your physique. and i am far from good at it lol.

overall you have a good frame though! some solid hamstring detail with a little bit some separation between the hamstring chords. solid looking shoulders and a nice bicep peak. some nice thickness to your torse and the lower back looks relatively tight. keep it up bro! you have plans to step on stage someday?

Back looks nice.

What are your goals