You don't have to tell your reader whose POV it is. It will be apparent as soon as they begin reading, and if it is not immediately apparent whose viewpoint it is, that's alright. It becomes a little mystery for the reader to finally solve as they're emersing themselves into the world you're building.
When i see that a writer has put POV in the beginning of their chapter or anywhere in their story i know that they are a novice, or they have never taken a college course in writing before.
Not saying it is a bad thing but it does make your writing less professional.
Just some friendly advice to an up and coming writer.
