You can graze on both "bad foods" and "healthy foods" and still look good. The problem is that most of the bad foods are calorie dense. Mostly because of the fats and carbs which make food so delicious. But you can definitely look bad eating "healthy foods" as well.
I recommend natural, non processed foods for my client over all health and systemic wellness. When it comes to simply "looking good" most can eat what they want as long as it's in a deficit and macros are accounted for.
Love some macros.