The Super Deformed (SD) aesthetic, sometimes better known as Chibi designs, has a unique appeal when representing characters, emphasizing cuteness and innocence. I think it works well with LEGO as a medium, especially when filled with details. Though this pair may not transform into their vehicle forms, these two best buddies Optimus Prime and Bumblebee, are built by Choi Dam Baek (최담백).

Posed in their robot mode, not only do they look great, but they do have enough articulation to bring them to life in a wonderful example of the Chibi aesthetic applied to unusual characters.