Creating new creatures.

Here, the system is quite strict. The texture is only half the battle. I do it using a text editor. Take a screenshot of the window where you're making the changes, and I'll tell you what's wrong. It's quite difficult to explain here. But there's a simple method. Simple, if you understand the game files, their structure, and so on. Find all the files related to the knight in the game data, inside the Characters folder. Extract them, put them in another folder, redraw the texture, and then specify these copied files for the knight.