Does anyone notice progress?

Your posture is improving?

Your clothing, stance and angle is different in each photo. It's hard to determine if there's changes...

Pics 1 and 3 look about the same. Pic two looks like you are slouching slightly and have your hips rolled forward or maybe nursing a food baby. If I took a pic first thing in the morning and one right before bed you would swear that they were taken months apart and that the night pic was me 20 pounds heavier growing a gut. How much your belly distends when relaxed is very often dependent on time of day and how much and what you've eaten.

I see some improvement from #1 to #3. Jseams1234 makes a good point about the consistency of pictures for comparison purposes, replicating conditions, lighting, posture, and even clothes can make a big difference when comparing photos. Additionally, over what time frame are we seeing between these photos? It takes time to see abdominal changes, even moreso when you're not working with a lot of extra fat to be trying to lose. Progress might not be showing from this angle but perhaps there's some changes in definition you can see when viewed straight on?