The artist is N. Dofline, I'm not sure there's more of that though
There is. You can check on E-Hentai by searching for N. Dofline or Expendables.
First 18 are easily found.
Second one which request is from i only have pages 2, 4, 5, 14, 15, 16, 17 and 20. I've not been able to find the rest of xpend2 in my searches.