Honestly? The images didn't excite me too much- subjects weren't interesting, overall... keep in mind I'm generally bored silly by flower pictures. May just be me.
That being said, I didn't care for the composition much- cropped off more than I would have expected in some, kind of overly centered composition in many. (look up the Rule of Thirds... it may give you some ideas)
The depth of field is pretty extreme in many of these as well- throwing petals out of focus a mere inch or less from where you are actually in focus. That seems kind of a shame, and generally isn't the norm for pictures like this.
What the heck is with the "do fish get thirsty" thing?