Nice, I remember back before i actually started making games, i tried following Brackey's tutorial on this and playing around with it for a while, if your just learning the basics i would try working on it for a lil while longer to just add some royalty free music, some sound effects, a main menu so you can lean to swap Scenes, and then just maby something that increases the monsters health over time so it's eventually possible to loose, then lastly a Score counter or Wave counter :) , but good job! i made a wave turret defense kinda game myself but with a twist, Give it a try if you like!