I knew you were very young as soon as I saw your screen name, but even moreso when I saw your art. Considering your age, I would say that these aren't so bad.
What I like most about your work is that you aren't slacking. You tried to add atmosphere to both images. I think that's great.
Best advice is to just keep at it. Draw all the time. But I'm sure you know that and do that already. I don't know if you're at the studying phase yet, but if you feel the need to learn and improve, picking up some how-to books would be a good thing, if you haven't already. Anatomy, perspective, such and such.
Welcome to PJ.
Literacy does NOT suck.