As title suggests, I'm wondering about the flexibility of alter self.
If a druid has alter self active and Wild Shapes into a goat, could they use the change appearance option of alter self to look like a sheep instead? What about a Medium cow?
What about if they Wild Shape into a giant spider, then alter self into an octopus?
I'm aware they wouldn't get any stat changes for any of these appearance changes.
Since I suspect this will be up to DM interpretation, a good answer may include the designer's intent in their answer, in an attempt to address my more specific questions in the question body.
The change appearance option is as follows:
Change Appearance. You transform your appearance. You decide what you look like, including your height, weight, facial features, sound of your voice, hair length, coloration, and distinguishing characteristics, if any. You can make yourself appear as a member of another race, though none of your statistics change. You also can't appear as a creature of a different size than you, and your basic shape stays the same; if you're bipedal, you can't use this spell to become quadrupedal, for instance. At any time for the duration of the spell, you can use your action to change your appearance in this way again.