Consider shuffling them more. If this is a new deck, you may have needed to shuffle it more, looks like you got preponderance of Swords and Pentacles.

There is a specific technique for shuffling Tarot cards that is very different from shuffling a regular deck of cards. Suggest perfecting that technique. Before doing the spread, consider creating 3 piles and then recombining them into one, and then deal your Celtic Cross Spread.