Okay so yesterday I wrote a massive post going through all of your cards because it was snowy and I had nothing else to do, and I was just finishing it off this afternoon instead of doing work because I'm an idiot and I accidentally deleted it instead of posting it. So I'll try and just write something shorter on a few cards I had any real problems with. I was literally up to Urbanisation!!!
Sheriff: Seems too strong, I think it needs to cost at least $3. You can get one of these for $4 on the opening and then one for $5 on the second shuffle and that gives you 5 tokens so it's kinda like you've bought a terminal Silver curser for $4 which seems a little too good for me.
Farmer: This seems like it is to Journeyman what Oracle is to Catacombs, so I thinm it can get away with being $3.
Town/Road: This seems like a pretty clear $5 to me. Playing a Town and then Road is better than Lab! Sure, you have to draw them together for that to happen, but this can even just be a regular Village or a Smithy if you double play the Road. I think all this extra functionality makes up for the early unreliability. The Road gain isn't even mandatory!
Cliffside Village: This is incredibly powerful, but you probably realise that. Better than Junk Dealer easily, villages are great.
Necromancer/Zombie: I don't think a kingdom pile based around the Rogue/Graverobber+Knights interaction is a good idea. These game would never end!
Tribunal: I'd be careful about this, the attack seems like it could be very frustrating! I imagine Tribunal big money to be particularly agonising!
Minister: It's probably broken, but all the cost reduction cards are so I guess it just join the party!
Improve: I think this should just be remodel, not expand. Trashing an Estate to gain a $4 is similar to Summon and Seaway as a thing where you're spending $5 on a $4 but getting some other benefit. Trashing one to get a $5 has basically no decision involved because it's almost always going to be better than buying the $5.
I had plenty of other small thoughts, too lazy right now.