Low-Poly Model:
I was able to reverse model the low-poly version of the beverage pouch from the high-poly version by deleting unnecessary edge loops and minimalising details. This was a relatively simple process, and even though the high-poly model was under the poly count limit (2000) by ~400, the low poly reduced the poly count down to ~400.
UV Map:
The UV map was split into main sections, the upper faces being part of the lid and lip of the pouch, while the lower and larger faces are part of the pouch itself.
Normal Mapping:
I came across great difficulty in producing the normal maps for the low-poly model. Although I tried adjusting the technical details, cutting edges, rearranging faces and overlapping different renditions, in the end I had to photoshop out the normals that were proving too problematic.
Final Normals:
Below is the difference between the set of initial normals and the final product after photoshopping the problematic normals.
Low-Poly with Normals: