Interesting image Judith. Having two additional optical surfaces (the glass in the container with an index of refraction of around 1.5 and the water behind it with an index of refraction of 1.33) you are going to introduce unwanted distortions, especially if the container walls are not completely flat (I assume these are flower stems in a vase?). Add to that the close up shooting position and the shallow depth of field issues that are common to macro work, you have added another level of complexity to this shot. Finally, the image is back it, which will enhance the bubbles but darken the stems so another unusual factor to work with.
When all is said and done, the image is effective and has some almost abstract qualities in parts of the image.
If it were my shot, I would be tempted to crop a bit off the bottom. The little triangle between the stems is probably more or a distraction than something that adds to the shot. I might have done a touch more sharpening to counter some of the focus softening and might also have opened up the shadows a bit.