Is my nose too short in length? Can it be made thinner from tip? (Photo)

The tip of your nose does appear a little high, although without pre-op photos, it is impossible to tell if it is much higher than it was than before your surgery. I find a full examination with computer imaging can demonstrate how you will look with a longer nose. Lengthening then nose and improving tip projection can even make the tip appear more in harmony with your face. You should see a revision rhinoplasty specialist for a personal exam and opinion. 

You have thick skin, a hanging infra tip lobule, a wide middle vault and wide alar base. Depending upon your requested nose shape from the surgeon and the anatomy you started with, this could be an acceptable result. Addressing the 4 characteristics listed above can provide a thinner, more sculpted nose. You need to see a Rhinoplasty expert which is 1000 or greater rhinoplasties and 20 years or more experience in actually doing rhinoplasty. Especially revision rhinoplasty.