>>20951061Third person omniscient, first person narrative. These two are commonly used by beginning writers. I recommend picking one and sticking to it as you practice.
As for style, you'll just have to read more books to get a feel on how people treat their words and sentences to make them sound engaging and entertaining. There's really no shortcut to be found here, the secret to gitting gud is to just write and practice.
Experience is the key.