Looking at those screenshots I can already tell two very important things when it comes to stages making: 1. It's blurry, meaning you (nor cliff) considered the engine's upscaling factor. (Mostly because it's a static image. Scaling the image down will help, but it'll look worse.)
2. There is alot of noticable color-loss. (Again due to it being a static image.)
I suggest you learn stage building from a much better stage maker like this tutorial:
http://mugenguild.com/forumx/index.php?topic=104470.0
