Thank you for the helpful critiques! GG, I'll try to keep that in mind next time I'm out.
It was a lovely 93 degrees F today, and is supposed to be even hotter tomorrow (97, I was told...) so I'm not sure when I'll be riding next.
Cc: I suppose I do sit a little far back. My instructor has, as mentioned, gotten after me about my shoulders, and I think that might be why I'm so far back; I'm trying to keep my shoulders up. I'll remember that though!