That is pretty normal. Skin was the first noticeable change for me.
What surprised me most in the first month was how similar everything felt. Your body has no way to consciously perceive your hormone levels directly. You will notice the effects. Skin and mood are often the first.
You're not imagining things The E is working! Congrats on getting started!
I don't know what kind of feeling I was expecting but I believed that I would be able to feel the change in hormones :p
Also: My endocrinologist (spelling???) told me that quite quickly new fat would be deposited in girlies spots. I already ate quite a lot this weekend. Let's put this claim to the test^^