as Ma Ma Tam said, foremilk is very good also and is to solve the thirsty baby. but if you want your milk more creamy, you can drink more soya bean milk, fish soups( papaya , peanut, chicken feets), which they can improve your milk quality.
also, breastmilk quality may vary due to climate, your diet. so when it is in winter, your milk will contain more fat , and it will have more water in summer, to meet the needs of baby.