Using myfitnesspal and i averaged out that i take 400-500mg of cholesterol per day eating lot of for muscle gain but only healthy food (salads,salmon,tuna,nuts,fruits) is the my cholesterol level good or should i decrease?

Ans: A lot depends on how many calories you are burning. Your protein is good. Now your carbs. If you exercise them off and they are used for energy ok. But if you are overeating and not going for energy well you will make more storage.

Good composition: This is a good diet for a young person like you. But you need carbs to balance it too. Nothing wrong with carbs. It is the quantity. Your daily total calorie intake determines your weight.