Would someone care to critique this simulation?

I am a long time SW user but now trying to improve my work with FEA.  This is a tensile test simulation using C300 maraging steel in the Rc54 condition.  (solution treated).  I created this model to see if I could get simulation to correctly analyze this material so when I use it in my design I have more confidence.  Any help would be appreciated.

SolidworksSimulation