K-Dubs!
1. Really love the letterhead setup. Maybe the social icons can be centered on the line of text? OR rotate that line up text so it runs up the right side of the page directly up from the icons?
2. Business cards look great on their own, might need a couple things to tie them to the letterhead or vice versa. Maybe center the logo on the text horizontally and center everything to the page? Left align all the text too. Change the title to that lighter color for differentiation purposes.
3. I think you have the skills to throw in some extra stuff like patterns, logo structure, etc. You know what you're doing so show it!
4. Maybe page numbers in the bottom bar to the right?