First impressions are of the eye, it stands out really well!
Technically this is ok. The bright spots are perhaps a little too bright even though they help make the eye stand out. Composition is good. The tones are lovely indeed. Good choice of DOF.
Artistically you have captured what looks like a great expression on the toads face. this clearly appealed to the voters who commented (note their average vote).
In summary a pleasant shot but lacks a "wow" to get a 6 score.