6 - I like the subject and the shadow element, but wish it were more defined/sharper and the composition slightly different - the angle of the shadow and the angle of the leaf/veined thing (might be a pod), just isn't sitting well - despite the good darker corners to try to balance it out. I quite like your framing too. Just seems out, somehow, but may be different on a different medium/larger.
Looks like part of an old milkweed pod. Pretty and spare. Tones are gentle. Cut-off of the shadow at left is unfortunate. Composition well done. I like it. I think I sense the photographer's intent, or some feeling he/she had whilst setting this up and taking it. Nice. Thank you.