The first Mudéjar ceramics were direct copies of Nasrid ceramics, to such an extent that it is difficult to determine the origin of certain pieces. The techniques (gilded ceramic with cobalt blue), decoration (palms, stalks, palmettes and shoots) and the forms of Nasrid pieces were all copied. Although the Nasrid pieces were usually unique, luxury and exclusive items, the Mudéjar copies were produced for a much wider clientele. Later, the need to adapt to their customers' changing tastes forced Mudéjar potters to revise their repertoire of forms, to incorporate Gothic and Renaissance elements, and to adopt Christian iconography.