Horses in the style of sepia, how much it might cost?

[neborator]

In one case, the head of a horse, the signature is visible, the frame did in our time, the old was not fit anywhere, in the second case, a large kpuglaya picture with the horses, the frame of mind with a very old, round and unusual. Tell my how much it might cost if there are collectors who collect it, sold it when - something like that in auctions where - anything?