For shorts i've always made small coasters. Because for the series i make mostly big and difficult coasters. And because the pov us also a short there is a maximum of one minute for shorts at this time. I've seen there going to change that to 3 minutes so maybe in a few weeks also for shorts bigger coasters!
ART Engineering is a swiss army knife in terms of designing and building coasters. You got amazing thrills with cannibal, silky smooth family coaster bombora, and you cant forget the highly immersive primordial (lagoon is used to be my home park)
Motiongate and real madrid world are currently not owned by parques reunidos, but when i made the video it was on rcdb on the page of parques reunidos. So it's not a 100% accurate.