Evaluation 1 - how opening sets story

The opening of our opening 2 minutes involves Ellie and I just casually walking home from a day out and we come across a dead body which is laying on the floor covered in leaves. When we get closer we realise that its the little girl that went missing  a few days before in the middle of the night. We go towards the dead body and sweep the leaves off of the body to see if she is alive or dead and that's when we realise that she's dead. A few seconds later the dead body which is laying on the floor opens her eyes which causes me to scream in shock in this we zoom in and do a close up of her face. This is all effective on our movie as its what starts the movie off and tells you what genre it is and you make yourself think of the end conclusion.
The overall story is a simply set horror movie but its not like all of the average horror movies.
We start off with the production titles (Old Barn and Green Pyramid Productions) then as it goes on it starts with Ellie and I just walking round the corner of a path near the pond and we are just strolling and talking whilst we are on our way home. As we carry on we come across a body laying on the floor which was assume was dead covered in old leaves, then as we hastily decide to approach it we both kneel over the body of this young girl and sweep the leaves off her and then we realise that she is the little girl that went missing in the middle of the night a few days ago. We carry on wiping the leaves off the body and all of a sudden her eyes open and in shock it causes me to scream. As Ellie and I walk off and we were going to phone the police we see a very strange eerie looking man standing in the bushes watching everything we were doing, so I end up screaming again. Me and Ellie both run away from where the scary haunted looking man and the dead but also alive body where but in this process of running away the eerie man catches Ellie without me realising and as I carry on sprinting away Ellie screams "KIERA!!" This causes me to run back in the direction of the man and the body just to make sure my bestfriend is okay. As I hastily approach where we had started running I see Ellie laying on the floor under the light of the lamp post with a thick plastic bag on her head and a syringe in her stomach. Confused and scared I didn't know what to do so I just threw the syringe away from us and I started vigorously shaking Ellie to try and get a response but I didn't get any kind of response so I know he killed her.