Looking at the two pictures I do NOT see a preview pictures.
FIRST picture is a "toolpath" preview but NOT the preview that shows the actual toolpath AFTER running the preview.
SECOND picture is - I really don't know what that is but it does not look like a preview pic.
On to the tutorials ------
You are not going to be successful at this if you do not STUDY the tutorials. I will NOT recommend watching the tutorials, as in like watching a movie. Watching them will get you little to nothing. What I am suggestion is to STUDY them. That means watch, than watch again, and practice. Watch, stop, rewind, watch and listen slowly, rewind, watch again. Try it on your own, then go back and watch again. SOOO - if you don't have time to watch, as in watch a movie, which is what I am saying is not a good way to do it, then you are NOT liking what I am saying about STUDYING.
Truth is - you will need 10,000 hours at this before you will start to "get it". You are not going to get it, just by asking other users what is wrong. You really need to get past the "I don't have time" thing, and get into studying the tutorials.
All this stuff is REALLY COOL - and REALLY FUN. Guys like Adrian, Michael Mezalick, Michael Tyler and so many others here have WAY WAY more than 10,000 hours - more like 50,000 or 100,000 hours into it, or even more. NOBODY, gets good at this in 20-100 hours of actual working at it.
Soo - bite the bullet - study the tutorials - START at the BEGINNING. Get good at the basics.
I really don't mean to be harsh, but that my nature - I am not good at being diplomatic.
Imagine the Possibilities of a Creative mind