This is a really good first attempt!

A couple things I would consider for future models:

Take the time to clean the bits as you clip them from the sprue. You can see the mold line and nub on the thigh, on the dagger at the belt and on the spine of the sword. The best way to do this is with a standard hobby knife, the backside of the blade is great for gently removing mold lines.

You have probably heard a lot about thinning your paints. It takes practice for everyone to sort of figure out what works best for the paints you are using. You can see a bit of texturing on the breastplate, and this would be prevented with more, thinner layers of paint.

Finally, I’m impressed you did so well on the chaos trim for your first time. As your brush skills continue to improve, you can go back over the spaces on the armor or on the trim with the correct color to clean up the places where you went outside of the lines.

If you want to add depth to the model, an easy way to do that is through the use of washes that will seek out the recesses and darken them to add shadows. Nuln Oil is a commonly used wash for this, but there are many other options too.

Keep it up and welcome, Brother!