I'm not going to lie to you, it's a bit bored and unoriginal, but it's not bad, it's normal at your age, what I find admirable is the dedication and enthusiasm you've put into it, keep it up, I'm sure you'll get somewhere. And it's also curious that, being a teenager, you know those melodies...
You can still improve a lot, but surely if you continue like this, when you are 20 years old you won't even recognize yourself.
Pipobinder
I'm not going to lie to you, it's a bit bored and unoriginal, but it's not bad, it's normal at your age, what I find admirable is the dedication and enthusiasm you've put into it, keep it up, I'm sure you'll get somewhere. And it's also curious that, being a teenager, you know those melodies...
You can still improve a lot, but surely if you continue like this, when you are 20 years old you won't even recognize yourself.