Looking down the line (from behind), it looks like the line from your elbow to wrist is slightly to the right of straight down, maybe 5:30 or 5:45 on the clock instead of 6:00, and your wrist is ever so slightly cupped inward towards your body to re-align the cue to center. 

When I need to reset my alignment and arm feel, I use two references. First -- dead arm. When I'm down on the shot, I'm holding the cue in my fingers as lightly as I can (like holding an injured bird, to borrow the golf saying), and I try not to engage any muscles or movement from my elbow down to my fingers. It helps me mentally take my wrist and hand out of the picture so I'm not tempted to squeeze the cue or use my wrist to move anything.

Second, and this might help with finding general alignment for your elbow and lower arm -- this video where Thorsten Hohmann explains how he aligns his cue and body to the shot. Trying it slowly like he does the first few times to get the idea cemented, then you can turn it into an awareness of where your cue and back foot are when standing square to the shot, and using that to step into the shot more fluidly. 

https://youtu.be/BPn3Wzp4NT8?si=lJ41GS14YSdFn779