Yes its safe to say that no-one has enough of a mental library to hold that level of information in the forefront of thier brain! use as much reference as you can get your hands on and plan an image.
I am not sure how to respond, I didn't use any heavy reference, I did use some references, but most of them extremely unrelated to the final work (Does it show that bad ? )
Don't get me wrong if you are saying I need to use more references then that is a valid critique and will take that into account and rework using them. That does tell me that I am not at a point to work on my mental library alone, which is helpful advice.
If you are asking to see a reference so you can see were I was going with this, or where I may have went wrong, then I cant provide that, because it simple doesn't exist .