>>7741279This is incredibly 2 dimensional advice
>>7741065Getting a smooth gloss coat through a wet coat is highly dependent on your airbrush flow and how that relates to the amount of pressure needed to achieve that flow. You can imagine that the flow rate increases as the pressure increases in a cross section of a single action up from a bottom cut off but, most importantly, the rate of flow increase is inversely relational to the pressure increase up to an upper limit. That is to say a set pressure increase gets less and less extra flow from the cup as the overall pressure increases.
So when someone says "set 15PSI for optimum spray for xx paint" they are talking out their ass. An experienced airbrusher will never give hard numbers as they understand that many different factors go into a smooth coat it's more reliant on "feel" than on a specific one setting fits all method.
If you're seeing results like your picture, it means that you have too much flow and material coming from the airbrush onto the surface of the model, which is obscuring detail and leaving a thick layer behind. Generally, when you have a layer this thick, the orange peel effect is lessened as the model dries, you can relate this to honey smoothing out onto a surface as the paint is still liquid and will move to equilibrium perpendicular to gravity. This will cause sag on all vertical surfaces though and is not recommended.
1/1 is a lot of paint to thinner ratio and that means that the amount of flow coming out of the airbrush is of critical importance, since you can easily over spray the amount of paint onto a surface. Too much material is impossible to remove but too little material affects overall sheen and paint adherence. You want to find the sweet spot in the middle either by increasing your thinner to paint ratio, reducing pressure (to a point), changing the way you pass over the model or reducing the action if you're using a dual action airbrush.
tl;dr multiple thin coats