Each print includes a care guide for that species on the back.  

I am currently authoring a care guide for tropical fruit trees in South florida with a focus on cultural practices echoing permaculture principles.  On the back of each print is a page from the care guide that is on that fruit.  Here is an example from the care guide.  

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8x10 Tropical Fruit Watercolors 

These are images of these watercolors hung at Florida Gulf Coast University.  The beige silhouette of trees was painted on before the watercolors were hung.