Paul Dini says that the image I posted of Tex Avery's Riding Hood character was from Red Hot Riding Hood. Says Paul…
The tell-tale signs: Red appears shorter and cartoonier in that film, with a shaded nose and three fingers and a thumb in most shots, whereas she gained some stature and a fourth finger in the later shorts. And while her appearance in Little Rural Riding Hood is all reuse (except for the photo of her seen at the beginning of the cartoon) her dance footage is from Swingshift Cinderella, not Red Hot Riding Hood.
And since I mentioned Tex Avery, I should have mentioned Preston Blair, who brought Ms. Riding Hood to life when he executed some of the most memorable animation ever done.