The Celtic Princess of Pentacles and the Robin Wood Page of Pentacles are both young girls. This is what the page/princess cards of any suit usually represent, if they are to represent a person. You must follow your instincts while reading these cards. They may represent the querent (the person the cards are being read for, including if you're reading for yourself), a person in the querent's life or about to come into the querent's life; events in the past, present, or future; or an abstract psychological quality or energy.
In the Celtic Princess of Pentacles card, drawn by Mary Guinan, the warmth and energy possible in this card are apparent. There is a glow about the card, and the girl's expression is one of excitement. She is dressed in fine clothes (the style is Roman, so she is probably a noble during the Roman occupation of the British aisles) and jewelry, showing her security and wealth. If a Princess or Page of Pentacles shows up in your spread, you have opportunities for increase your wealth, or you may be enjoying it right now! Because of the happiness in these cards, I like to think the querent is going to make the money doing something he/she loves to do.
I also think of healing with the Pentacles or Coins, as they are associated with the Earth, which is the element of physical strength and fertility (as seen by all the greenery in the Robin Wood card). The person in question, or the questioner himself, may have the potential for being a healer, or being healed. This healing may be physical or psychological.
Archetypes and people associated with the Princess/Page of Coins, or Pentacles (Upright):
A kind, down- to -earth young person
A gentle soul who is loving to animals
A studious child who works hard
The Nature Child
Negative Associations (reversed)
A crude young person
a slow wit
a stubborn child
a gluttonous person
What to look for in your dreams: A child, especially a girl child, out in nature, or one that has a soothing presence.
Look out for green and brown colors. These are earth colors.