I admit that I was one that posted a couple of wheels, and while I had been doing Blender for a while, I also recognize that sometimes practicing “basics” is a great way to hone your skills and maybe learn something you missed. Part of why I participated in a number of the exercises (and even the class that Kent and Lampel ran last month) is not only to practice those skills but to also share my perspective, which at times is different from the instructors and could provide additional insight that wasn’t covered. And I’ll be the first to admit that while I may have textured and lit mine, they are far from perfect.
If you have a question about an exercise, feel free to ask! That’s a part of what the community area is for. Asking questions so that you can learn. And someone else might have the same question as you, but was afraid to ask.
Remember, don’t compare your work to what others can do, especially if you’re just learning a program. Compare what you did on this project with the last one and against what you believe you are capable of creating.