I've "been" to hundreds of weddings as a staff member and a few things I picked up over the years are:
Think about getting the speeches over with before the meal. I know they are traditional, but let's face it no one is remotely interested in the endless blethering. If you do them before the meal then the people who are nervous about speaking can relax and enjoy the rest of the day.
Food and drinks are the ONLY thing anyone will remember. Getting the exact shade of cerulean blue and magenta ribbon for the favours? No one cares. In fact, I wouldn't bother with favours, fancy table decorations, twiddly shit, or anything else. No one cares. The only thing anyone cares about is being well fed, frequently.
Your day is quite long. Quite a few people will probably bail out before the evening do. Don't be upset. It's not a reflection on how good your day is, it's just that some people (especially elderly ones) can't cope with a such a full on day. Have you invited some extra people just for the evening?
Make sure you and your new DH make the effort to go round and talk to everyone. I saw way too many brides huddled in corners with their friends which is quite rude when people have travelled to celebrate with you.
I can't see an issue with a dry wedding. It's one day out of their lives. Just make sure the soft drinks you are providing are interesting and varied and make sure you have way more than you think you will need if it's hot.
I think your drinks reception is too long. It shouldn't take more than an hour to turn a room. Is your venue somewhere where people can go and have a walk round?
It's too late to change much now, but it sounds like you are going to have a lovely day. Most of all don't get so stressed that you don't enjoy it.