Question: Does fitness cover model & bodybuilder look super shredded with massive vascularity, superb condition for 24 hours or all year long?
Answer: Nope they don't... They diet down, depleted, manipulating carbs and water. They pumped up achieving temporary peak conditions before photo shoot or going up on stage, it is temporary effect.
Just like when you are working out in the gym getting pumped looking bigger and fuller, hours later you will shrink back to normal.
Although it is temporary, to achieve this of course you must have extremely low body fat level (2-6% bf) with good muscularity.