Just goes to show how amenable most independent game designers can be. Good for you MarcusRaven its great to see these sort of Mods Make it to the Workshop.
Quickly looking at it Why do the number of Cards in a players hand matter ? That is in real life wouldn't your opponent know how many cards you had by the amount you initially and subsequently draw ?
As it stands short of using a hidden Zone in combination with a hand Zone you don't have many good options. to completely hide your cards from view.
As to suggestions to the mod itself, top of my head adding a basic shuffling script would be a good and simple addition to allow you to remove the randomize zone from over the deck.
And some form or demarcation to indicate the position of the Discard pile perhaps.
