I think you've done a good job here! The application looks pretty clean with little polish seeming to be on the skin, and the nail beds don't look like they were flooded either.
I like the style/colors and the nail art is pretty good too. A little more practice will help you get smoother and thinner lines, but using the right brushes for line work can dramatically help if you aren't already using those.
Last thing, I find if I use a coat of hard gel or an additional base coat before putting the final top coat on, then it will encase the art better and make it look more professional and shiny/smooth. You can check out my recent post with the zebra print to see what I mean since I may not be doing a good job explaining it here.
If you aren't even using gel polish and this was all done with regular polish, then hats off to you since regular polish is so much harder to work with in my experience!! I picked up nails as a hobby 3 years ago, so I am no professional and these are just some tips I picked up along the way ☺️