Well, I searched the image over and over, again and again, looking for any glaring flaws, but could not find any.
The framing is tight and composition is good. Focus is spot on and the background is unobtrusively soft.
Good work, there.
Is there anyway to further improve this image?
May be.
In my opinion, the image was taken in broad daylight due to which details in some areas have been burnt / washed out. Perhaps applying -ve exposure compensation of say 2/3 could have helped. This way the contrast and depth can be improved. Shooting in RAW can also help in recovering few of the lost details.
Off topic: Can you share the details of lens used for this picture and for that of the Kingfisher in your earlier post. Going by the color pattern it appears a Sigma lens. Probably, the 70-300mm APO DG macro.