Ochim, Thank you for the logos. Here is what i would change to improve them.
1. Make the horse as strong and masculine as possible. Have the horse face left, and don't enclose him within a circle. This horse needs to be very powerful, and if you can, show some movement (posture the horse as if it was running or leaping over something.
2. I like the font selection. 3. I don't mind the mark (the circle with the lines in it), but don't love it. Definitely need to remove the horse from it.
I hope this helps, thanks for participating, i looked at some of your other work and really like it. We should discuss some other opportunities i may have for you. Can you send me your skill sets?