I love your Tiger Salamanders, the markings are incredible. I hope they do mate for you. How does that work? Do you put them in an aquarium mostly filled with water?
ITHURTZ's Blue Spotted Salamander is very cool, too. How big will it get?
Here in Oregon all terrestrial salamanders are illegal, but I've been looking into getting an Axolotl.
I attached a couple photos of a Pacific Giant Salamander (Dicamptodon tenebrosus) I ran across in the woods. They are the world's largest terrestrial salamander, though they don't come anywhere close to the giant aquatic salamanders in China (or even the Hellbender, for that matter). Terrestrial adults have a 7 1/2" snout-vent length and a 13" overall length. Neotenic adults reach around 14".
Notice the car keys in the first photo to get a good idea of how bulky this guy was.