This is a good first eye study 👍
You’re clearly understanding the basic structure and the iris placement is working well.
For improvement, try to soften the outlines a bit. Right now some lines are too dark and make the eye feel flat. Build more value inside the iris and keep the whites of the eye lighter and cleaner. Also vary the eyelash thickness so it feels more natural.
Overall, this is a solid start and shows progress. Keep practicing and it will improve quickly 😊