PROFESSIONAL!!!!
I can do my own makeup. Heck, I can even do special occasion and theatrical makeup.
But photographic makeup is an entirely different creature. ESP if you want to look normal AND photograph well (a whole 3rd creature!)
You'd have to buy very specialized makeup for this, and would actually save money having it professionally done.
SIMILARLY : MAKE TWO APPTS.
Any good photography makeup artist will insist on a dry run BEFORE your wedding. That way they can work out palette and details with you (and erase, try different "looks" without needing the end result to be flawless) in advance, so that your wedding day you will look... Perfect.
((Ahem, "stars without their makeup"? They're usually WEARING makeo!!! They're just wearing normal life Clinique/Mac/BareMinerals/etc. aka GOOD makep, instead of photography makeup!!!))
These things are usually billed as a single service, even though its over two appointments. Make sure, again, that the makeup artist has quite z bit of training in this. It really takes quite a lot of skill
Have fun! So exciting!!