the best launcher/home screen i have seen and use for the epd is big launcher with the monochrome light theme (others available) - colours and size are really good on epd
yes i know it's for the more mature / senior person but it works really well
i use this has my 2nd launcher/home screen and switch between main and this
i have tried various launchers on epd with lots of icon packs (b&w are best) but they don't come close for me to the big launcher!!!
now looking for a good web browser for use on epd that works better than stock version - web like a book looked hopeful but only available for 1st gen yota phone - hoping developer may update
hope this is of interest and helps