Great job Levi.. I think the colors on the 2nd outfit are really nice (especially the sweater)... Its nice to see you venturing outside of your really light colored denim (which arent bad imo.. but variety is the spice of life) However, I think you either wear a v neck or a crewneck with a deeper neck. The black t-shirt is almost looking like a mini mockneck (or turtle neck) which doesnt work too well with a cardi. Ive noticed this with a few other pictures of yours.
Also, you could wear a shirt with a collar under the cardigan..
Click on the links below for examples of what I am reffering to
link 1
link 2