Stock answer:
You are fine for now although as said wedges. L40s ping ones are great value and it's 3 evenly spaced ones.
When you hit L59 / Master Ping G20 irons which will see you in to Legend. I know someone who still has your current irons who just hit legend at L87. He is just getting away with it.
EDIT: People have gone to Master with starter gear.
Credits and choices:)