Drobot does have the armor to fit a 50-70 ft. long dragon. The greys used adds a sense of realism to this Cyborg or Droborg. Looks like the suit is keeping him alive. Is it bolted on? The head gear is an improvement, especial the eyes. However the metal symbol thing on his head has been demoted to being an air flower. However, I like how the center orbs has been cracked. I like to believe that the scrapped Chinese Dragon Skylander invented this armor and became Drobot, and you really nailed that perspective for those you think like Moi. The feet are nicely done, though I'm not sure why you didn't make a them full boots. I can't tell if his tail spikes are hidden by the armor, or actually his tail spikes. The tail ending piece should've had those back of airplane tings, (I don't know the term.)
Mad Blue did a good job in capturing a realistic cyborg dragon. I don't want to say prefect.