This level is amazing for being the first level to make! Keep it up! And this level gives me a TI2-vibe, which makes me feel nostalgic.
In aesthetics respect, this level has no obvious issues, good job! In design respect, I can only say that there's still great room for improvement, but I think if you work hard, nothing is impossible! Just keep it up! And... It's not recommend to put massive enemies in one screen, make sure that there're just 4 ~ 6 enemies in one screen in most cases.
I am looking forward to new levels you're going to make, good luck!
