I wouldn't hire anyone but a specialist (unless yer really bold) but acid stained concrete can be done in a number of ways. Tight patterns, organic, faux stone, etc. Not sure how long it holds up but I really like the look. I've seen wax and epoxy topcoats.
https://www.concretedecor.net/decorativeconcretearticles/vol-14-no-3-april-2014/victoria-simpson-collins-capitol-decorative-concrete/