Not sure if this is the right place to post this, but I couldn’t find a more fitting subreddit

I’m 16 years old, 6’3, 75Kg. I have been lifting for a while (benching 70Kg 5x5, to give you roughly an idea of how strong I am) but my upper body still doesn’t have as much of a V-shape as most people. Is it because of my age (can I expect it to get better on its own), or are my genetics shitty? How much can I improve it by lifting and gaining mass?