>>96753091
The models look a little flat, not much shading on the weapons, clothing, packs.
Maybe do a little bit more work on the weapons little gems and whatnot.
A wash or shade it doesn't have to be thick goes a long way.
Add a selective highlight here or there and it won't take much time but it will improve the look a whole lot

The important thing is actually painting the Miniatures and being willing to improve