I noticed as I painted my 1/24 Monogram TC that the Krylon red went on super smooth with no discernable orange peel…I remember in the 70s Struggling with heavy orange peel when I painted a car body! 
Looks good to me. I recently used some gloss black paint from a rattle-can on a 1/72 BAE Hawk T1 (after a disappointing result from my airbrush, which was entirely down to me) and it came out just fine. I have a couple of large-ish projects coming up which will need a lot of gloss white, so I’ve invested in a nice big can of Appliance White Gloss.
Appliance paint is really durable.
Part of the improvement is the years of your learning curve.
Could be…I was impressed how well the paint leveled itself.