I read an instagram comment by Sapien saying that it would be better to use just one mandala at a time for faster, stronger results. For your financial needs, you can also use the Abundance and Prosperity mandala if you wish, although in my case, the Draw Luck one is excellent for money matters and problem-solving and I did not need other mandalas anymore during that time.
Right now, though, I put Sapien’s Lucky Horseshoe mandala along with other paid Maitreya mandalas in my wallet when I go out. I also have copies of them at home put in a plastic booklet which I wear at home after listening to Sapien audios. So far, results are okay since Maitreya posted that you can wear several of her mandalas at the same time.