One thing that is so hard to get on arms is that high peak.
i dont really consider that desirable, in the end you are left with comical pointy pyramids on your arm, see ronnie's current condition
i much prefer a long thick bicep that doesnt peak much, it looks much more powerful and less fragile
especially with arms next to the body long pointless biceps look best, and that is the position they will be in when grabbing 18 years babes attention