He looks like an awesome pastel to me! Could it be you might think it’s a wobble. I’ve had some bp’s in the past that just had intense strike poses. They would even twitch a bit. I would say a wobble is very noticeable. In spider balls they can be upside down and act as if they are upright. I mean not all spiders but it’s a common trait. Does your pastel hang upside down or does he upright him self when you handle him?