200 press ups and sits ups?

Here's the thing, If you do these two exercises all the time you'll get what's called muscle memory. You may not gain a lot of size or definition (you almost certainly will gain some) but you may come out of it being able to do 300 push-ups and sit ups instead, which is a pretty good result. I'd recommend mixing it up by doing different kinds of push-ups, pull ups, sit ups, and then some crunches (lifting your neck and shoulders barely off the floor while in the sit-up position) and then doing lots of stretches for your upper body...that will definitely give you a lot more definition. Stretch every morning and every night on top of your routine and I can almost guarantee you'll up your tone/definition results by 50% at minimum.