I think a photo shoot would be a good idea wether you compete or not.
Honestly, a good photographer that specialises in fitness is a must! That is something I would highly recommend.
it also really has non of competing downsides. Despite what some posters believe, there’s huge ones. Including huge impacts to mental health. Especially, for people like us with adhd.
I really think you should look into that, anyway.
Just to reiterate, my comments about comps, don’t mean I don’t think you husband is reasonable. If his only objection is based on his insecurity, then he is being a dick. But, assuming you want to stay married, I would try and talk about it when less emotive and see if that’s really his only objection. Sometimes, we react and say things that aren’t really indicative of what our issue is. We might have genuine concerns, then something small tips us over the edge and we make a big deal about that, when it’s not really about that.
Of course he could just be a dick. If he is just a dick, then I think you need to really think about the future of the marriage.