Newbie here - Shoulder Xenomorph tattoo

Hey all! Looking to get my first tattoo (and i have to say please dont dm me about digitally drawing an idea), but please do DM me if youd be willing to help me pick an artist near me so i could find someone that could do this well?

**looking at them more i like the 4th one the most dunno what style that is or what other styles would work well with it (full body with tail)**

1. Given im terrible at art I would love to know how people can tell if someones a good artist? what exactly do you look for? because 90% of what i see is good artists 2. how do you know what art style would work best for a tattoo idea(the fourth)? be it that its a xenomorph do i want realistic? i dont even know other styles lol 3. I like the idea of the 4th photo the most in that pose but i think the first an 5th ones have a cooler art style. What could make this work?