So I definitely need to work faster, or rather do fewer sketches. I think, though, with time, I'll naturally get quicker as I improve my drawing skills.
Here is a compilation from my sketchbook since Jan 1:
I doubt you can read the headings, which are: "reference photos," "ref and drawing from memory," and "illustration references and tutorials."
What is still missing is the page(s) where I work on my own illustrative style. I already moved on to the next critter and will come back to drafting my own roosters once my brain has cleared a bit from other people's styles.