It's basically the Default Texture Pack, but with noticeable changes. Nothing to it. This basically a Custom Texture Pack for people who love Default, but hate some textures. ex Emerald Ore texture, and Lapis texture].
1. Your screenshot should be in your post. Go to texture discussion for a tutorial.
2. You have only one screenshot, and it shows off only two blocks. For most people, that is not sufficient.
3. You shouldn't limit yourself to default edits. Try making blocks from scratch so you can have something original and interesting.