Protip: Don't put half of a hard boiled egg on top of avocado slices. One of these ingredients should be mashed. That, or do egg slices. Still, all looks pretty delicious.
No pico de gallo? Pumpkin seeds and cilantro; roast pepper or roast poblano; thin pesto spread, avo sliced, topped with cuc and radish (or maybe just pinenuts); pepper jelly spread or chutney, alternating slices of avo and mango. At least no mayo in sight!