having an ideal for a perfect design is going to set yourself up for disappointment. i've seen it happen often for first-timers, they carry this idea of the perfect tattoo for years and years and try to incorporate every single idea/detail that jumps in their head into the perfect tattoo to give it some idealistic meaning, to justify the tattoo to themself and others. that sets the artist up for failure if they try to cram all these dumb details into an undersized tattoo. And it will leave you disappointed because it will not match the idea of the perfect tattoo in your head.
there is a degree of trust you need to have in the tattooer, so choose well and choose wisely - trust that this tattooer will design and make you a nice tattoo, with nice layout that fits your body, a good composition, proper execution and (also very important) a positive, exciting experience for you to remember how you popped your tattoo cherry.
my advice -
keep it simple and you should be able to articulate what you want in a couple words.
be flexible and open to the tattooers interpretation of your concept.