The first mini on the left is a Crusader phalangite, with a Polemarch shield. This was an annoying mini to prep (I hate the tiny sharp bits of metal that you often find on Crusader minis, left over from vents), and I find it a little dumpy, with rather fat legs. Details like fingers and toes are less well defined than on Foundry minis. I think I'll paint all my Foundry's first...
The middle figure is an Aventine elephant crewman, with a Foundry shield. I love the helmet on this figure and want to fit some into a mixed unit along with some Foundrys and Polemarchs. I presume Aventine will sculpt some, later, with greaves (which one obviously doesn't need in a howdah!). I did this one in expensive purple clothing and a silver shield, as an Agyraspid. It looks OK, but I think it would look better still with iron or silvered armour to go with the silver shield, and perhaps paler clothing colours.
Figure on the right is a Foundry peltast who has been consripted into the rear ranks of the phalanx.