Screenshots

1: You have not included an image of your object's channels. When uploading an item to MTS it is a requirement that the object is shown so that downloaders can see which channels are which; this can be done using different colours. You must also show the CAStable channels in a chequered pattern to demonstrate that the UV mapping is not distorted; you can do this as a separate screenshot, or you can combine the channels screenshot and the mapping screenshot.

2: Your images show the object's channels, but they don't show the channels in a chequered pattern to demonstrate that the UV mapping is not distorted.
2: Your images show the object in a chequered pattern to demonstrate that the UV mapping is not distorted, but they don't clearly show the different CASt channels on the object.

5: Thank you for showing off your object's channels.