I am redesigning my company's site. The primary persona is a marketing director in her 50s (edit: late-career professional, not retired / senior citizen) who is computer-literate for basic tasks but not an expert. One of my challenges is to make my portfolio more visual. I've sketched several approaches for this: a grid with captions where everything is the same size, a grid without captions where everything is the same size, a masonry grid, a slider which emphasizes the most recent project, and several less common layouts.
Is there any research showing that masonry grids are or aren't more usable than other grid forms? In particular, how would this vary according to the age and technical expertise of users?
Related question here, but it is more generalized to all types of grid views: Research on the Usability of Grid Views.