What is the effect of protein concentration on the resolution of SDS agarose protein electrophoresis (SDS-APE) gels?

Chicken gizzard protein was solubilized in SDS using the following protocol: http://biotech.biology.arizona.edu/labs/pro_stu.html.Various dilutions (20%, 40%, 60%, 80% and 100%) of the protein were loaded into the wells of an agarose gel. The result is shown below. What is your conclusion? (to be continued).
Second attempt: going, going, gone. Nice Job.