There's a few ways to look at it.
One way to look at it is what
muscles are you using. It's a great combo! Certainly "most of them", at least to some degree. But you could add something more for areas that need more stimulation -- I'm thinking abs, quads. (As
@Mark Limbaga said, squats, would hit the quads more)
Another way to look at it is
movement patterns. You might look for something with lateral or rotational movement. (Get-ups are good! Great idea
@jtsang ) Or one-arm C&P, for some degree of anti-rotational stimulus.
A third way to look at it is on the
strength/strength endurance/conditioning scale. This depends on the reps/sets/weight you are currently using. You might be doing 5 sets of 5 HEAVY C&P, or ladders -- mostly a strength stimulus. Or you might be doing 20 sets of 10 light-ish C&P -- mostly a strength endurance stimulus. Or you might be doing sets of 50 even lighter C&P -- mostly a conditioning stimulus. In any case -- you could vary the reps/sets/weight for a different type of training stimulus than what you are getting already.
And a 4th way to look at it is the
skill. If you're interested in expanding your repertoire of kettlebell skills to swings, snatches, push presses, jerks, windmills, high pulls, front squats, etc.... There are many excellent options. But as long as you are working on C&P, there are probably improvements you can make with just that. Welcome to post a video for feedback...