John, who was a little in advance of Peter, stopped at the entrance of the cave and looked in.

He saw the linen clothes lying on one side, and waited until Peter came up, when they entered the sepulchre together, and saw the winding-sheet empty as has been before described.
John instantly believed in the Resurrection, and they both understood clearly the words addressed to them by Jesus before his Passion, as well as the different passages in Scripture relating to that event, which had until then been incomprehensible to them.

Peter put the linen clothes under his cloak, and they returned hastily into the town through the small entrance belonging to Nicodemus.
The appearance of the holy sepulchre was the same when the two Apostles entered as when Magdalen first saw it.

The two adoring angels were seated, one at the head, and the other at the extremity of the tomb, in precisely the same attitude as when his adorable body was lying there.

I do not think Peter was conscious of their presence.