Here I go again but I don't think those are oak leaves. That being said, very nice image ...the light is a little too much upper right but a graceful image overall
The color looks really off, on my monitor(s) it looks purple, I would expect a more red tint (white balance issue?). It might have worked to go really close and just photograph part of the leave and stem and show the early morning frost more clear, the current image is missing a strong structure to look at and getting close might have created a more restful strong image.
Are you sure it's an oak? Ok for dying in grace and beauty, but not with these colors. Seems hue manipulations has been a bit exaggerated., but the idea is good and the way the leave is leaning is well seen.