Alex, the problem with the lower body is that they are muscle groups that get worked every day - especially the calves. I can hardly ever make mine burn. But give it a day - you may be feeling them then.

Do you have a mirror you can use to check for correct form? I found this helped me - specially with upper body.

Hint: if you bend your knees 30 degrees when doing the calf raises you isolate the muscle and will feel the results that much more.

Nat