VCE (Victorian) English student lurking around in the HSC forums here! Don't think the quoting system is any different between the two courses, so thought might as well help out. Feel free to correct me if I'm wrong.
When quoting a scene, try and integrate the quote/reference so that it focuses more so on analysis than description. An easy way to ensure this is to have the bare minimum of description that is need to provide context for your analysis. In other words, if you're not going to analyse the score, don't mention it, and likewise for cinematography, mise en scene etc..
For example, let's take the scene in Charlie and the Chocolate Factory when Charlie runs home after getting the Golden ticket. There's a landscape shot that shows his pretty run down home against the backdrop of city buildings; the message here could be something like Charlie has to leave his home to grow as a person. Here's an example of how I would add in the reference:
In the landscape shot as Charlie returns home after finding the Golden Ticket, Burton juxtaposes the imagery of Charlie's dilapidated home with that of tall, clean city buildings. Through this, he attempts to convey that in order for Charlie to grow as a person, he needs to leave the restrictive nature of his family home, and accept the opportunity of venturing beyond that the Golden ticket provides.
Probably isn't the best in terms of analysis, but hopefully it still demonstrates the general gist of what I'm trying to say. You can see that a majority of it is analysis as opposed to me describing the scene. In fact, the only part where I'm really describing is the first part of the first sentence. In the following sentence where I'm describing Charlie's house as dilapidated, I'm sort of more analyzing it since I say Burton juxtaposes it with the background landscape.
Hope that helps? ¯\_(ツ)_/¯