As by Dalauppror requested some pictures mixing up miniatures from Fireforge Games and plastic miniatures by Gripping Beast.
First I used head and arms from the "Mounted Sergeants" box and glued them to a saxon body from GB.
Second Ionly used a saxon head from GB.
For the third one I only glued a "Foot Sergeants" head on a saxon body
All in all the miniatures mix up quite nicely in my oppinion.