A Holmesian Solstice

you have placed inkonice as the artist for "Yet Another Brainwave" however, this is made for them?

And this is why I retain the title of Comic Relief Guesser. :-/

You're obviously correct that inkonice did not create their own gift; if you are also correct on both your other points, that would mean that ratinavan did "Brain-Wave", and inkonice created "Smaug".

That's not a bad matrix...but I'm inclined to stick with my original guess for "Smaug", and that creates a really tricky chain of dominoes. If I'm right about "Smaug", and you're right about "May the Fourth", then one of us almost has to be wrong about "Beloved Embrace" (and I note that 4thelneyj0nes did offer for Sherlock & CO., whereas inkonice did not).

Revised guesses for art:

# inkonice • "Beloved Embrace" (for My Dearly Beloved Detective)
# ratinavan • "Yet Another Brain-Wave" (for ACD)
# lucygturpin • "A Present for Smaug" (for ACD and The Hobbit)
# 4thelneyj0nes • "May the Fourth" (for Sherlock & Co.)