While I think it's nice that the Iron Golem is finally getting some love in pet form, I do have one big complaint about these new pets: THEY ALL LOOK EXACTLY THE SAME!
Seriously, aside from the names and pet cards it is impossible to tell them apart from each other. My solution would be to give them each their own different and unique looks akin to the different Iron Golem TCs from the 5 BOXES event. Right now they're suffering from Officer Jenny/Nurse Joy Syndrome (for those who don't watch the Pokemon anime all Officer Jennies and Nurse Joys look exactly the same).
