I literally went down the list of all marriage candidates in vanilla Skyrim and tweaked several of them  in some fashion. A lot of them now look a lot younger than they were and therefore far more appealing. Some, like Balimund in Riften, just got cleaned up a bit. Others, like Belrand in Solitude, got a makeover from the ground up. The Companions were left alone on account of I know there are SEVERAL mods that handle them exclusively, including my own. My main goal in this was to make sure everyone who could be married put their best foot forward. I don't know anyone who would want to marry an old man in his 60s whose hair is receding, so I made sure to fix that. Some, like Mjoll, even got things like new armor out of the deal. Oh, and I also added Erik the Slayer as a marriage candidate and made his skills match the gear he carries, and improved his gear. I like that boy and he needed help bad. Plus I figured since I usually just pay for his armor, he should have some quality gear. His dad's a bit of a cheapskate. 

One reason I don't have very many pics posted is that there are so many of these NPCs it would take a long time to find and photograph them all, so I'm just gonna leave things as is. Consider it a bit of a treasure hunt.

Note 2/20/18: It has come to my attention that people have recently been having trouble downloading my newest mods, which is odd considering I have been using the exact same method of packing them since I first started posting here and my 2 oldest mods here don't have any issues at all. I'm looking into this in my spare time and am hoping I can find a solution to this. In the meantime, I do have this mod and several others on the Steam workshop for you to download, and that's not having any issues right now.