Because the amount of enamel removed is extremely small, in most cases no visible gaps form between the teeth. The appearance and size of the teeth stay almost the same. There may be a slight change in shape – for example, the teeth may look more rectangular, if that is the aim of the procedure. Even so, when stripping (interproximal reduction, IPR) is done correctly, it does not noticeably change how the teeth look.
This answer is for general information. Your own case needs an examination by an orthodontist.