Every tarot deck is somewhat different from the others. When you do divination with tarot it is best if the deck suits the individual doing the reading. The more we resonate with our deck, the easier it is to interpret.
My personal favorite based on the setup is Thoth. Including the fool there are 22 trump cards (representing powerful influences), 4 suits (disks, swords, wands, and cups) and each suit has 4 court cards that indicate meetings in society, and an Ace card representing new beginnings, energy and strength.
When you make your own deck it helps to incorporate the trumps and suits of a deck you like. Using an artistic medium you favor can increase your chances of a successful reading. It is important to use colors and symbols that reflect your own ideals of the meaning of each card. For instance the ace of cups represents the root powers of water, fertility, productivity, beauty, pleasure and happiness. I painted a waterfall flowing into a pool of water edged in lilies and a clear blue sky at the top.
If you have any questions or need help making a deck feel free to ask :)