When people don't have extra Markings downloaded you will appear to them as marshmallows.
As for the spot-drippingwet Marking confusion I will try to explain:
-A is using Cub Spots and it's the 3rd marking
-B is using Siamese and it's the 3rd marking also
In A's computer, B appears as he is using Cub Spots though B is meant to use Siamese
In B's computer, A appears as he is using Siamese, though A is meant to use Cub Spots
It appears in the wrong order. When markings have the wrong order they will appear like the order that people have in their game.
I really don't know how to explain this but if you want me to explain better I can try.
Redownload the markings from here: http://www.mediafire.com/?d8rp5m6pic93223 (http://www.mediafire.com/?d8rp5m6pic93223) (I reuploaded this one.) Apparently either your download had the markings in the wrong order in the .cfg file, or you didn't click "replace" when you moved the markings into Feralheart/media/Textures.
Also, a lot of people are still 'marshmellows' to me. I thought that was just because they have presets but it's doing it for some of the mass markings as well, which I should be able to see?
When people wear presets, you won't see a marshmallow- You'll just see normal markings as if nothing was different. The only way I think this could be happening is because when you moved the markings to the "textures" folder located in C:/Feralheart/media/textures you didn't click replace so you just have doubles in there, however, I am not 100% sure.