Yesterday, I browsed through some custom models for the game and got inspired – I re-equipped the knight with new models (but didn't paint them), and the result is impressive. There are no Alliance armor pieces here, only Orcish and Necromancer models.

The helmet didn't turn out very well, but that's because it was originally designed for an Orc's face.

I'm not sure if this will be a new upgrade or an alternate upgrade; I need to think it through carefully.

And here, I implemented the idea with the sleeping bag! But I think it's more like a meditation mat or a portable pentagram, haha.

It looks great, and now it resembles the Undead faction more! However, this horned knight looks a bit strange, mainly due to the large number of small details. The model itself is top-notch, but I think the overall color scheme needs to be adjusted so that it's more visually appealing.
As for the second knight, there are no questions; you're really good at creating models!


Added 20 minutes ago
I think it's because of the different colors of similar elements:
The horse and the rider both have horns, but they are different colors. The rider's armor has spikes, and again, they are different colors. In any case, I think the shoulder pads and the lower part of the rider should be better aligned in color.
The fabric is especially noticeable. The horse is green, the weapon is red, and the rider is half green and half brown (if you look at the cloak, for example).
At the very least, I would definitely suggest changing the color of the fabric on the weapon. Otherwise, it would be better to adjust the entire rider to be either a fully red or a fully green version.
*Of course, it's all up to you; I'm just sharing my opinion.

Added 5 minutes ago
Another idea to add to the collection – if you can do it. You could try creating a "ghostly" version of the horse, similar to the ghostly dragons, for upgrades. There are two ways to implement this:
1) Create a transparent model for its skeleton, preferably with an "aura" effect.
2) Simply make the skeleton darker and add an "aura" effect, so that the horse seems to be made of darkness or is a creature from the abyss, something from the other world. You could also make its eyes a different color.