I notice that the background is needing a more definite presence or I will stand the chance of really screwing up, so I begin darkening the branches, giving them their shadows and highlights.
Next, I notice it is mainly the path of the vines that needs to be done. Reserving where I am wanting to put things as I progress with the details. It is kind of like I need to build my structure where the rest of the characters will reside. Constructing the image site.