I like the carry on bag. About the same size as the Lug one I use and worked for 9 days in Paris as a carry on. If you're planning on buying much stuff, the larger bag with your carry on stuffed inside is a great plan. The shoes look good too, most important thing is to be comfortable, as no doubt there will be lots of walking. I didn't take any jeans on that trip, I used travel weight Ex Officio and Columbia ones, which are lighter, dry fast, and the wrinkles shake out quickly. A skirt would be a nice addition for a change. Can't comment on the camera, as that's not my area of expertise.
Sounds like you're on the right track, and not leaving anything to the last minute, though I expect the night before/day of the flight will be a flurry of packing/unpacking/making decisions. I've learned that it's better to pack lighter, and then you can always buy something if you really need it (or really want it ).