Hi, looks like this here:
If it's different for you, please try clearing your custom folder (Toribash/custom/revenje) and run
/dl revenje command in chat to redownload your textures from server.
If it looks same but isn't supposed to be as dark, please make sure your textures don't have any transparency and try reuploading them.
In case it still doesn't work, please update one of those textures here (feel free to add some watermark) so we can investigate further.