Very good painting and photography!
I've always had a soft-spot for Foundry Napoleonic Russians and they really do repay careful painting, and, basing.
You can never have too many so I encourage you to buy some more!
Reckon that they would also be entirely compatible with Perry's own range of Russians as their later Foundry Russian infantry sculpts were both taller and finer than some of their earlier/other Foundry ranges.
Cheers,
Paul