As far as I am aware, No, they had no shrines, or images of any kind. They DID do body painting, and some pretty serious piercing. (The older people all had pierced septums, but traditionally they also pierced the lower lip on each side, and wore jaguar or peccary teeth in the piercings.)
Comparative art reveals an interesting difference in how they see the world, as opposed to Westerners (Americans?). 'We' concentrate on getting the outline as perfectly as possible, and they will often not even draw in the outline. A butterfly or a jaguar is drawn with the spots all in correct shape and location, while our tendency is to draw the outline and then just fill it in with the spots in a rather random manner, which makes the animal unrecognizable to them. (Not so much so with butterflies, as the color variations appear to 'register' with 'us' more than with an animal like a jaguar or ocelot. But we have drawings the Banawa made of both jaguars and butterflies, and there are no outlines at all in either of these drawings. We had the people do drawings for calendars we printed for them, as literacy aids.) Putting more than one picture on a single page (next to one another) was also confusing for them, because they interpreted the entire page as a single thing, perceiving 'interactions' between what to us were separate photos.