1/ have a link to the collection from this screen so that I am able to see quickly the new cards in my collection.

2/ I would like to see how the packs complete my collection when I open them thus to see how many copies I have now of the cards that are in the pack. You have implemented several ways to track the count of cards: on the "open packs" screen, there is the "first" reminder which could be extended to other numbers; on the collection screen, you have the diamonds count; on the draft screens, you can press the ALT key to show how many of each card in the pack you own. Just choose the one you like most...