The appearance of the scar one year after reconstruction is dependent upon multiple factors. The type of repair that was performed, any complications (e.g. infection, hematoma), your own predisposition towards keloids/hypertrophic scars, etc. etc It's not dependent upon the Mohs surgery as the Mohs surgery creates the smallest wound possible (while giving the highest cure rate). It takes about 6-12 months after reconstyruction to reach the final "result" so if you're still concerned about the appearance of the scar, I would return to the doctor who performed the repair and discuss what your options are.
Scar appearances vary, depending up on the location, type of reconstruction, skin tone, exposure to UV light, and wound care. But in general, as time passes, most scars improve in their appearance.