Very, very nice
There's lots of interesting details on pic (especially crates, barrels, etc.).
In addition to what YakSpit already said:
My guess here is, that she started adding details right away. That's why pic lacks a bit of consistence. Usualy it's better to first sketch out the whole location (nothing fancy, just a few pencil strokes) and later, when the basics of pic are set, add details. This way it's much easier to work out composition.
Another useful thing would be varied outline thickness- she's already doing that, but very randomly. It is recommended to use thicker line on the foreground objects or objects that are in focus and closer to viewer- it adds depth.
Anyway, really good effort! Looking forward to more

In addition to what YakSpit already said:
My guess here is, that she started adding details right away. That's why pic lacks a bit of consistence. Usualy it's better to first sketch out the whole location (nothing fancy, just a few pencil strokes) and later, when the basics of pic are set, add details. This way it's much easier to work out composition.
Another useful thing would be varied outline thickness- she's already doing that, but very randomly. It is recommended to use thicker line on the foreground objects or objects that are in focus and closer to viewer- it adds depth.
Anyway, really good effort! Looking forward to more
