My favorite Cathe's are Muscle Max, Muscle Endurance, Power Hour, HSTA and High Step Challenge. I grab those the most. It is not uncommon for me to grab MM, ME and PH all in one week. Mon, Wed, Fri.
As for running or elliptical...kind of varies depending on what I am training for I aim for 45-60 minutes of cardio 5-6 days per week. The 6th day is my big exception...Saturday is my long run and that has been as much as 15 miles. Typically during the week, I will run 4-5 miles. I think incorporating the elliptical leaned out my legs a lot!!
Now, you guys do not need to be doing 3 hour workouts (I sure as hell don't) and lifting dumbbells the size of watermelons. This is a perfect example of X weights lifted = X muscle mass or X strength. I match Cathe with weight selection...except for bicep curls...I shave off 5 pounds on barbell curls because her weight is too much for me.
It's diet. I have really been careful about everything I eat, drinking a lot of water (36 oz. before I even get out of bed). I eat more carbs because I am a runner. Simple carbs early in the day. Mindful eating. I did cut out alcohol entirely (not forever but I don't want it now).
A few other answers...yes, the hair is naturally curly. Other thing different in the pictures is my bottle tan compliments of Loreal SubLime self tanning lotion in Light-Medium.