These two images of Lily's at a glance look similar but the are simply just a different perspective of the same thing. The use of lighting added to the simplicity of the flower creates an almost smokey appearance of the second image but the first image displays the beauty of the large petal and the shape that the lily is famed for. The black and white tones give the shadows more depth and enhance the bright pleasant colour and the curve that the petal makes.
The above image is visually pleasing and the way the petals frame the center of the flower highlights how unusual the shapes are on the stamen (not sure that's right on this particular flower). Again the black and white tones have been used but I'm guessing that to do with how old the image is.
By using Lily's, Imogen has captured some interesting shapes and the way the second image has been composed highlights this. She has opted for an in camera crop to accentuate the curves in the flower. The first image shows the dramatic change in tones from a white flower and coloured flower when the black and white effect has been used.
With this image you can instantly tell that its more of a modern image than the others i have researched, The use of colour gives this flower a warm feel and the complex petals add to the interesting shapes. The composition is simple where its a birds eye shot but works brilliantly.
These last two images are different to the flower images and her intention in my opinion is to capture the unusual shapes and lines that reflect off the subject.