Something to think about.

Compared to the cyanotype, the artist's rendition displays more detail in color and characteristics. It does make a difference because it's as if the object left its shadow, its presence, on the print and I think it definitely affected Anna Atkins' audience as it was far off from an artistic rendition of the actual algae. Where the cyanotype lacks in level of detail over a modern digital colour image, it makes up in the aesthetic value and stimulates the imagination by a sort of abstraction. There is certainly aesthetic resonance to the cyanotype image as there is a good balance of blue tones which creates fluidity in the image.

Algae photogram

Description: A photogram of algae in cyanotype process which is based on iron compounds.  The photo was created by Anna Atkins for her book Photographs of British Algae: Cyanotype Impressions.

Intention:  To create an exact impression of the object, in this case being algae. 

Interpretation: The shape and form are in calm tones of blue against a deep blue background. A silhouette with extra detail added with tones.

Evaluation: The photo is very easy on the eyes because of the mix of blue tones. A regular 2 tone silhouette is sharp, when a cyanotype photogram with its mix of tones is very fluid and has a good balance.