Bullsnakes can be intimidating. Mine would hiss and tail rattle but once out of her cage was dog tame. But they do tend to hide and will manhandle any decorations that arent nailed down. So for a display, maybe if you dont mind a plainer tank with only heavy decos. But they are very cool, and a nice handful when full grown. Also they poop alot, I swear mine would poop twice for every rat she ate.
Sadly I had to rehome my bullsnake and my pine, because we moved to a smaller house and didnt have the room for the larger colubrids.
EL-Ziggy your albino bull is gorgeous.
We had a kingsnake years back and he was a hider, only saw him late at night. But was easy to handle.dont know anything about garters but they have some really pretty ones here in the wild.