Need some help Identifying tanks

I have been working on my tanks that I received from my Santa Clause. They are five really nice M4A2 tanks from Plastic Soldier Company. They are proving to be a bit fiddly to assemble. But they seem OK.

I assembled and put a base coat on one so far. I am going to do two of them as US vehicles and three as lend lease Soviet tanks for late war.

With the one I was working on, I got curious and wondered what the rest of my US armor looked like. Well, I have no idea of what I have. A bunch of shermans and two other types. Can y'all help me figure out what I have?

First picture:

And the next Set:

Thanks for your help.

Now, i did get in my brand new Khtz-16 self propelled guns. Craig over at Gaming Models did a terrific job on these.

I really like these and hope to have them on a table pretty soon.