I've featured the work of Mattias Adolfsson before, but I ran across some of his marvelously dense & vaguely steampunk illustrations again the other day and wanted to point you in his direction once again.
The fantastical & whimsical nature of Adolfsson's work reminds me of Mark Alan Stamaty, Richard Scarry, Shel Silverstein, and perhaps even a little Quentin Blake and Aardman.