A lot of people here are going to just encourage you to do anything you like and ruin your marriage, because they just get off on women being slutty (I mean, I do too but I'll also offer some real advice). If you don't care about your husband or the marriage, then sure, its an easy choice, just keep doing whatever you want.
On the other hand, here's a bit of a reality check - unless your husband is an absolute cuck to the highest degree, I think most men in this lifestyle expect there are going to be some limitations on the wife playing. I mean, it's not much of a marriage if everyone just does anything they want at any time with no consideration for the other person's feelings. It's a bit of a black and white view to assume if it was his idea for your to play, then it's okay for you to take it to the farthest possible extreme. You two need to talk and establish what the boundaries are.
It sounds like your husband is okay with you having multiple bulls, which seems like a reasonable amount of freedom. It is unclear exactly what set him off but I can kind of see how he might be upset, for various reasons or just overall, at how the situation got out of control. I would personally not want anyone to find out I was into wife-sharing, other than by us choosing to tell them. Having my wife photographed by random people at a club, naked and covered in cum would make me pretty nervous, even if its "unlikely" the pictures will get out. There is the possibility they could and the consequences could be significant.
I can also see how it might be disconcerting to have random unknown guys join in fucking your wife. I mean, some husbands would be totally cool with that / hope for it... but I think it is also reasonable if your husband expects you to play with known partners / more limited partners, where there is less fear of STDs or other things that could potentially go wrong, like some unknown guy stalking you, etc.
And of course your bulls are on your side - I don't know the situation but likely, they're just there to use you for their own entertainment and don't care about you or your long-term well-being like your husband does.
Ultimately, not saying what you did is necessarily right or wrong, or that your husband's feelings are unfounded - it is just a question of how much you want total freedom vs. whether you value the marriage and want to find out what your husband is comfortable with and where things cross a line for him. Calling you a slut for it seems like a poor way to articulate those feelings but maybe you can sit down and have a more constructive conversation about what part of it really bothered him and make a commitment to agree to some ground rules going forward.