Thanks Beno, your Appaloosa is the same as Susanne's and Taylor's but I used your pictures anyway.
About the chestnut horse, despite the different place of the letter marked on it, I believe it was just to avoid the seam and that this figure belongs to this series.
So, I added it as Toy Major Small Chestnut Horse (1997).
Now I've seen Taylor posted an interesting set of foals that give us some more light on this subject.