Why is Bulk Biceps so out of place compared to the other ponies?

[Carl Poppa 464]

What's wrong with him not looking like the other ponies?  Too many of them use the same exact model.  There's a lot more physical diversity in real life.  I like Bulk Biceps' unique appearance, even if it is steroid-y.

[cmarston1 5,959]

Because he looks like he took steroids which is why a fan name for him is Roid Rage.

Plus his design makes it look like he is in pain/uncomfortable all the time.