Wow Jeff,
Your F/A18 turned out really nice, like the weathering and panel lines. It turned out pretty well using a brush…good job.
Two tips,
One: when masking, I like to paint a thin light coat of clear (most times Future, dries fast) over the tape. Then paint on the color. Doing this will stop the paints from bleeding under the tape. Just before you remove the tape, use your hobby knife and lightly score at the tapes edge. This will leave a nice straight paint line. This works well for those most delicate places.
Two: when painting the red on the landing gear doors edges, I like to use a red Sharpie marker. Don’t use the tip, just run the side of it along the edge. Again almost near straight lines.
Joe