Here is a summer dress I made from scratch. I used a very lightweight yellow gingham fabric.
The bust and back of bust are shirred and the bust is ruched a bit for definition. The edges of the bust are bound with yellow lace trim into a sweetheart neckline. The sleeves are trimmed in yellow lace as well and the hem falls about 2-3 inches above my knee. The skirt has a bit of flounce to it because I find that in plus size sewing, it is useful to have a bit of extra fabric in the front so that my stomach will not protrude. Especially with woven fabrics--I am not the kind of person who likes to wear skin tight clothes.
Instead, I defined my waist below my chest and made the bust area interesting to draw the eye upward so there is less attention on my generously proportioned lower body ;p
Furthermore, I just wanted to note that covering the entire body on plus sized women (longer cuts on dresses and long sleeves) is one of the worst things to do because it make us look even larger. I am not one big block of fat, I have curves. Some of them thicker and larger than others, but I am not square or circular, I am dynamic. You all are too. And you all are beautiful. Plus sized or not.
Rant over.
This is possibly the most comfortable dress for hot weather ever. The dip at the hem in the middle is that extra drape of fabric I was talking about. It really helps the flow of the dress, but it looks odd in photos. also, the way I'm standing makings the sleeves look like they're different lengths, but I promise they're not :)
I tend to wear knit shorts underneath though, because my area has a tendency to get windy a lot!
Also, this looked super cute with white sandals (not flipflops) and a white purse.