Nice job with the free version, once you'll get more practice with Construct you will learn how to squeeze more things with the limited lines at your disposal ;-)
I got to a point where I couldn't continue, the big piece took like 3/4 of the screen. I tried 3 times to avoid that, but nope.
I noticed that the character can "jump" pressing up, not a big jump, but it's doing that. If you don't want to have it, in the 8 direction setting, you can choose Left & Right.
Keep practicing with the free version, you will learn a lot. If you want more events, while waiting to purchase C3, you can try to practice more with the free version of C2. That has 100 lines and 4 layers ;-)