Without a doubt, these two avatars should be scaled according to his physique. If there were no accidents, Tyrion's next step after entering the Virtual Dimension World was to take the initiative to set up his avatar as well as his profile in accordance with his real life data.
After all, even if he could set up his avatar according to his imagination in the virtual dimension, he still has to pay attention to the rules of the Alliance and cannot just mess around.
...
With the intention of trying, Tyrion first chose the figure on his left and began the modeling process.
En, since the avatar's body shape, appearance and name had to be authenticated by the brain of Virtual Dimension World, there wasn't a need to make that many adjustments.
Regardless of any adjustments, once others check the real authenticated data from the brain, they would know who the person really is. Thus, Tyrion didn't feel the need to make any adjustments.