Elle has a pink bouquet in hand when she enters the house about 20 minutes into the movie. The bouquet is pink in all shots except when she tosses it onto her bed - they are yellow in this one shot and pink again later in the kitchen scene.
When William Shaw is rescuing Lilith from the house from the demon, about 30 minutes in, a boom mic is visible in the reflection of the front windshield of Shaw's sports car.