Weeeelll... I must admit I haven't read through all the replies.
The first thing I noticed is the use of flash in flower photography, which I think is a kind of no-no (when it is on-camera flash). But I have seen as much in the other members' replies as to know that that aspect has been pointed to already.
But I came to this thread for a more general answer, less specific with regards to the photos of these particular flowers. And I just mean to share that it may, indeed, happen that we try too hard, that we get the feeling "I haven't touched the camera in days (weeks, months, whatever), I must go produce a good photo again at last", and the first of those photos are almost bound to not make it! (That has been my own experience).
And it may just happen that we wish we were in "photography mode" but aren't. Like when the TPF meet-up was on right here where I live last week. I can tell from everyone else's photos appearing in the thread just now that many were well into "photo mode" and produced some amazing work. But try as I might, I seem to have been in "host mode" instead, and my photography visibly, noticeably, suffered from that. My photos are plain, uninspired, straightforward, but certainly not very interesting.
So it also much depends on the general mood we are in if taking photos will "work", i.e. lead to something that will also capture someone else's (a neutral viewer's) eye, or if it will be "one pic out of many" that only means something to us because we were there and happen to be the authors of said photo.
What I have found out is that once you realise you're not precisely in "photographer mode", but in some other, and still force it, it will show! I get the feeling that it DOES show in all of my meet-up pics... :roll:
Back to the flowers, all I have to state is: no on-camera flash ... if the light is too low, wait for better light. And non-centred compositions usually work best, unless you go for a very symmetrical photo of a flower.