It's not easy to know where you have your clients. Some prefer more polished stuff, which means less time for exploration. Others like when you give them roughs which they can respond to. If you've worked with a client for some time, they know your capabilities and might eventually accept rougher stuff for the initials.
If you start out with polished stuff, and your client wants to change a lot, you're gonna have a bad time.
But if you want to promote yourself, polished stuff is more effective.
As for having an impact... you need to think about what your niche is and what the quality of your stuff is compared to the competition's.
Jamen jag tror att han skäms, och har gömt sig. Vårt universum det är en av dom otaliga spermasatser som Herren i sin självhärliga ensamhet har runkat fram för å besudla intet.