Is your hair wet in all of these photos? If so, it's certainly not the best way to set yourself up to win in terms of giving yourself the illusion of density. Especially since you're covering a large area with a limited number of grafts, you get to be creative in terms of how you style your hair so that it looks its best. A dry look with a thickening paste/pomade would be a good start.
The first 72 hours are the most crucial in terms of making sure the grafts are securely anchored. After that time, the risk of them dislodging decreases dramatically, and continues to do so day by day, leaving them completely secure by Day 10. This is based on a study by Dr. Bernstein and Dr. Rassman.
That said, when I mentioned I buzzed mine, I simply - and very carefully - buzzed around the recipient area so that the hairs were uniform and would all grow in evenly.