The 50 cards will contain a mixture of many different rarities and will only have a small chance of a vintage and QCR.
The bulk will at least guarantee:
5 Common
5 Rare
5 Ultra Rare
5 Secret Rare
5 Platinum Secret Rare
There will be a chance of QCR and vintage cards. The bulk is mostly 1st editions and there might be unlimited cards in the bulk.
The cards which are shown on screen are representative and the cards shown might not be sent to you as it will be randomized into the bulks.