Impressive compression, @intaplink! Here's the updated line-up using my 2 pngs:
photo.png
139 KB - original image
109 KB - ImageOptim
36 KB - kraken.io
32 KB - squoosh.app
32 KB - iloveimg.com
29 KB - ImageAlpha
text.png
21 KB - original image
16 KB - kraken.io
14 KB - ImageOptim
14 KB - squoosh.app
7 KB - iloveimg.com
6 KB - ImageAlpha