Braces can be combined – for example, metal on the lower jaw and aesthetic (tooth-coloured) on the upper, or metal on the back teeth only and aesthetic on the front teeth. It is worth bearing in mind that, although the upper teeth are more noticeable when you smile, the lower teeth can also be visible, depending on your bite. Experience shows that some patients who initially choose a combination of different types of braces later regret it, and even say they would have preferred all-metal braces. This is a matter of personal feeling, but it is worth thinking about when choosing your braces.
This answer is for general information. Your own case needs an examination by an orthodontist.