You've done well with the shape of the vase, but like others have said probably the rose leaves takes just a little bit away from the roses themselves. Good job
Like the vase, like the design and I think the leaves need to be there,
otherwise, it would look too stark, too 12 balls of color all in a row.
This way, it blends.
For me, I think it needs a bit more...perhaps some hypericum and some other greenery woven up thru the roses and extending out a bit from the base. Also, since you are trying to go for that perfect arch, you need to be sure that your roses are indeed the right lengths...some are just a bit off.
The vase is a wow! I would use more negative space around the roses since they are already competing with the stunning vase. I love the overall design and concept.
