Thanks for the comments, everyone! I have to say that like Shiny, I never would have thought of putting together an outfit like that before I came to this site, so it's helped me immensely. Maybe I'll post some "Before" pictures on Halloween and give you all a good scare.
Nicole, I wish those were ballet flats! Alas, no. Heels really are the best look for me, because it just makes me seem more proportional. These shoes are actually really comfortable, despite the heel.
Angie, you were right, this shirt is AWESOME! I think I will order another one. It is so comfortable, and I really feel confident in it because it sort of covers my little tummy I have. I hate to go with black because I'm sort of "Anti-black," but the blue is a dusty blue and I'm worried it would wash me out.
The Boden jacket is great! The sleeves are a little bigger around than I am used to, but I chalk this up to it being a more casual cut rather than a true, tailored blazer, and that's okay with me. The only complaint I could possibly have with it is that the buttons are plastic. This doesn't bother me too much (I could always change them if I really wanted to) but if I had my druthers I'd want something more substantial.
Shiny, this is the first item I've ordered from Boden. The measurements on my particular jacket (it's a US size 8) are 23" on the sleeves from the tip of the shoulder to the end of the sleeve, and 24.5" from the the top of the jacket in the center back under the collar to the bottom hem. I'm short, but I generally don't take a petite for jackets because only my legs are short, my torso is "regular." I do have a problem with sleeves being too long on many jackets, but this one is not the case. I thought it would be due to the measurements on the website (it said the sleeve length was 24") but the sleeves are shorter than listed. It might work for you.