This is a portfolio of nature documentary concepts that try to depict the small world in detail.
Essential assets such as frogs and dragonflies were created first, followed by Animation > Background Layout > Lighting > Rendering.
I think the most important thing to successfully complete your portfolio is consistency.
No matter how good the planning and good references are, if you quit in the middle, it will all be useless.
If you take one step at a time every day, even a little bit, you will be able to feel that you are progressing more today than yesterday and that you are getting closer to completion.