I think this would have presented itself better had it been a bit softer and toned-down, as the high contrast renders this a bit too harsh in my opinion.
vivid, but the speckles I don't care for. Might be port of the flower, maybe hair or something, but just doesn't seem smooth this image seems it would be nice smooth and seamless.
I think this is a very good idea for an abstract. The focus on the petals and the blown spots, particularly in the lower left center (in the green) are both unfortunate in my opinion. I like the way the fan of petals takes up the entire frame. Beautiful symmetry portrayed here.
Composition: 5 - The centering works here, it kind of resembles a hue shifted Macedonian flag!
Technical: 3 - The bottom part seems over exposed, and the rest seems a bit dull, contrast-wise. The also leads to teh colours not having the impact they could. Also, I think you could have easily used the 720 pixels available for this challenge.
Creativity: 3 - Its an unusual crop of a flower, and from underneath, but other than that it doesn't have a lot of creativity.
Appeal: 3
I just LOVE this.....the colour contrast is so powerful, and the whole photo just has such 'pop'. Only thing is, I wish you'd used your whole size allocation, and made it a bigger photo, and perhaps toned down the highlights to the left of the picture. But very nice....well done.