I think it looks amazing. Especially the color scheme is spot on!
My only suggestion would be the one given by Kent during the live-stream:
Try to get rid of the perfection of your model, because nothing in reality is this perfect. Try to adjust the orientation of individual leaves, try to change scale and rotation and maybe do a final pass for the image texture before applying it to the low-poly version of your mesh.
Have to figure it out myself though … Maybe I should apply my own advice first and start lecturing others later. 😀
