Post-processing is a double edged sword.
Let's start out by saying that I'm a fan of the second as well, but not necessarily from a "photographic" point of view. For me, because of the ludicrously shallow depth of field, neither of these work as "flower shots", but both work very well as an expression of abstract form and color.
The first one: I am a huge fan of monochromatic photos, especially when it's a more abstract composition. It is a striking style, and works well for me. However, it is not quite as monochromatic as I had hoped. In other words, you have the purple flower just barely in focus, and the blurry forms of other flowers around it, all of which is great. What I would like to see, however, is the brown/tan upper right and the black upper left also filled with purple. Of course, I don't expect you to plany flowers there just for the sake of the photo, but maybe there's a closer composition, or a different angle that does that? In the absence of a re-shoot, I'll suggest something that is almost painful for me to mention in a day when every amateur photographer does this to be artsy: Selective color. Nothing extreme, but I'd take that brown and make it neutral to not distract from the lovely purple, and maybe burn it down to be more in line with the other corner. The other thing I'd mention is, oddly, for me, a bit too much is in focus. This seems crazy, right? But remember, I'm looking at these from an abstract point of view. There's just enough in focus to see the imperfections in the flower petals: darker spots, a slightly ragged edge, etc. The photo is 99% other-worldly, and that 1% brings us back to Earth.
The second one: This one as an abstract is perfect to me. Sure you can tell what the subject is, but the point of an abstract is that the photo is more about the evocation of a feeling than the subject, and this does that brilliantly. The blurred lines of colors that are not only layered in 3 lush areas, but also complement each other wonderfully make this great. This time, while it has the same level of focus, there are no imperfections to speak of, so it works. If I had to choose something to critique, and I'm not the sort of person to leave that out, it's the collection of tiny white dots on the green, in focus section. Clone it out, as it's distracting, and a leftover from aggressive sharpening (I think). The other, very minor, thing is there is a flower petal about halfway up on the left hand side that is on nearly the exact same plane as the main flower, and as such, ir nearly in focus. This draws the eye left, and I think it would work better without it. Whether that means a re-shoot, or some deft cloning in photoshop, I'd like to see the result.
Now, back to my original comment. These are very clearly, and strongly processed. I do not say that as a negative - It's a style, and I think it works here, but it was one of the first thoughts that entered my head. If that's what you were going for (the stylized, photo-manipulation look as opposed to a more traditional photo), than congratulations, I think you did a great job!
(I know we've both been around a long time here, and you've probably got a pretty good handle on me, but I always put this disclaimer on critique posts. I don't spend as much time as I should in the photo galleries. When I venture in to comment, it might seem like I'm tearing photos absolutely apart. That's what I do. I pick nits--I am a nitpicker, but I only comment on the photos that I think have a high level of potential and/or artistic merit. Needless to say, I really do love these photos.)
EDIT: Holy crap, sorry for the TL;DR.