There isn't necessarily a specific look or tell tale sign that explicitly individualizes what hormones someone may be using. Yes, some do have certain side effects such as water retention while others melt adipose tissue. In reality though it comes down to what that person put into them in terms of nutrients that created that look. Not necessarily a specific compound(s). The hormones are there simply to accelerate muscle development and will compliment anyone who has worked hard and taken the time to learn, experiment and eventually tailor there own diet to fit their desires/needs.
If you lined up 10 people and they were all on various combinations of compounds or simple testosterone cycles and the variables were fixed across the board (caloric intake, cardio, weight training) I guarantee it would be impossible to look at each individual and say, "Oh he is definitely using Masteron, D-Bol, and some TRT dosed testosterone."
And you definitely don't need exogenous insulin or somatropin to posses that full muscle belly look. Just learn how to eat.
EDIT: I just realized you said "DHTs"...... Were you just referring to DHT derived steroids? Never heard someone just say he is on dht's. Generally it isn't smart to use multiple oral compounds simultaneously due to hepatoxicity and I've honestly never came across someone who legitimately used multiple oral steroids. I've seen threads about it in the past in other worlds of the internet just like people running trenabolone only cycles....lol
I know there is quite a few that can be found in oral and injectable formats, but I have yet to come across quality products in that realm.