Great stuff Sonny. I haven't checked all the tutorials on your site yet lol, just a few.

One thing I'll point out that's really important. Is to get comfortable and confident with your sketching style. The more you feel at home with your style, the easier it'll be to get ideas out. But don't close yourself off. As artists we stray and try other styles and it's a healthy thing, we all need to try different styles so it builds to our own. Then get comfortable again and again and again. It's a perfecting process.