I had two trials with Katie before my wedding day. On the morning of my wedding, I explicitly asked her - more than once - for the natural look we created during my first trial. I even showed her a picture from the trial and had the photo ready... for her to reference. However, when she was done, my eyebrows were darker than we had ever discussed, I had the wrong lip color on (though I couldn't tell at the time because she was telling me it was the right color and I don't wear lip color very often), and my eyelashes were WAY longer than anything we had done or talked about in either trial. I asked her in disbelief if the lashes were the same as the lashes we did in the first trial and she answered yes, but photo comparisons between my first trial and the wedding day prove that they were not the same length. She put extremely long, fake-looking lash extensions on me for my wedding day, which was a look I absolutely did not want. At the time, we were running very late (due to hair and makeup) and literally did not have time to redo anything, especially all of the lashes.
When I tried to address these concerns with Katie a couple of days later, she blamed me for everything, saying I didn't know what I wanted (even though I explicitly asked her for exactly what I wanted that morning -- she just didn't do it) and repeatedly sent me a link to the bill, which I had already paid. I will have to live with the look I had on my wedding day for the rest of my life, while I felt that all she cared about was making sure she got paid.
Overall, I regret using Katie as my makeup artist for my wedding. If you want a very natural look for your wedding, or if you want your wedding day makeup to look anything like your trial, I suggest looking for a different vendor.