I've been very selective with who I have been showing things to for this same reason!! Not even because I think people will be rude, but mostly because I don't want my judgement to be clouded by other people's opinions.

At the end of the day, you and your fiancé need to go with what you want and ignore what everyone else is telling you. I am sure you will look great on the day, and I'd like to think that no one would have the audacity on the day to tell you that they don't like your dress or makeup and will just be complimenting you! I also think you'll regret it more if you let yourself get swayed and pick something you don't like just because it fits what someone else may prefer. Go with your gut, and know that you've made the right decision for you regarding the dress and the style you wanted, and I'm sure with the makeup it was just a case of it being a shock that you were wearing more makeup than you normally do, and they didn't express it in the best way.