I'm still learning how to design levels. I would have played throughout the weekend but I was busy at Long Beach Comic Con manning my table.
That being said, though, I do have 4 stages I've made that I feel are pretty quality. I'd love some feedback and some playthroughs since Mario Maker doesn't seem to do a good job of getting levels played.
Anyway, here they are in order. I tried to aim for traditional Mario courses that you'd see in their respective games. Nothing in them seems impossible. Anyway, here we go!
Use the Parakoopas! ID: 08FC-0000-001A-327B
Basically my take on a 1-1, but with a more demanding series of jumps on fluttering parakoopas.
Pirahna Plant Pop ID: 36BE-0000-001C-63FD
A hidden Super Star and Fire Flower make this stage much easier. Quite a variety of the classic chomping plants, but none of the firespewers.
Backsy Forthsy Mansion ID: D0AA-0000-001D-A1C7
This stage takes to back and forth in a tricky mansion where you'll wind up just out of reach of an area you've been before. Beware of the tricky note blocks and fireballs!
Flowers and Firebars ID:B815-0000-0038-5C2C
Fire balls, fire bars, goombas, and vertical climbing. Watch for branching paths, and take advantage of the plentiful fire flowers to make your passage a little easier.