It was good looking level! Now only littlebit more puzzle to it. :)

Teamwork is absolutely the way to go. I wish it was possible to team build in Qbeh's editor. :)

I have a new level coming soon hopefully.

I have improved them now, my later levels are better. my first 3 were fine then I did bad puzzles and now am back to more challenging ones.

Nicely constructed level i.e. nice looking, but yeah it was too easy to keep the purple cube, and after that you can just go over obstacles and very quickly reach the end. In fact, I don’t think I’ve even seen the entire level, I don’t remember any rubble field, where was that? But you obviously put time into this, and I’m grateful for anything that allows me to extend the playability of one of my all-time favorite games. Reading the comments, I have a suggestion: if you feel your weakness is puzzles, maybe you could team up with somebody who is really great at the puzzle/gameplay aspect but not so good at designing and constructing buildings. That’s how the pros do it, teamwork, with everyone concentrating on their strengths. Just a thought.

Well, I may have good architecture. I still ned experience with puzzles.

I have such nice colors and rubble in my final level for World 7, Level 6, thanks to you! :) It is so much nicer to build the way you do - it has dramatically improved my architecture!

Read the Doors tutorial guide - it is about teaching skills. There is also good info in the Avoiding Common Pitfalls guide. A little practice and some guidelines and you'll be in good shape!
Pick an activity or skill
Start easy
Introduce variations
Increase difficulty
Ease off a little near the end
Reward the player. Hide things; cubes, routes, secret area (s), bonus items.
If you want to friend me, I can give you some pointers. :)

Just toy aroud with interactions. What gets you where?

I can build designs better than puzzles.

I did keep the purple cube, and figuring out how to do it WAS a really fun thing. I felt like I was clever for doing it. That is the sort of thing that makes levels fun ... when you make the player feel smart. :)

Yeah this level is gorgeous and has good gameplay, but it's a bit too straightforward in my opinion.
The first room strongly appealed to me, I really like those kind of jumping/placing challenges.
The rest of the level was a bit too unchallenging in my opinion. There was always only one possible thing to do, nothing to figure out.

And was I supposed to keep the purple cube? It seemed like the rest of the level was designed to be beaten without the purple cube.

The architecture is just gorgeous; I loved the rubble and the use of the dirt, and the pile of light cubes was wonderful. I didn't see anywhere to skip ahead, and the path is linear and easy to follow.
The only thing you might consider is the difference between a level that is harder and one that is more challenging. This level is harder, because the jumps are more difficult, but you might think about ways to make the player figure out puzzles that are more complex. It is all about teaching skills, practicing them, and then adding complexity. That provides challenge; that really engages the player and helps them grow. That is the recipe for fun! :)
I really have to do the rubble field in a level ... it is so wonderful to see what a natural you are at building. When your gameplay matches your building skills, you will be unsurpassed in the workshop.