Dreaming of an ex-husband who is now covered in tattoos can have several interpretations. Tattoos often symbolize personal expression, life experiences, or changes in identity. Here are a few possible insights into your dream:

1. Change and Transformation: The tattoos may represent significant changes in your ex-husband's life since your separation. This could reflect your awareness of his growth or transformation, whether positive or negative.
2. Reflection of Feelings: The dream could be a reflection of your own feelings about the past relationship. The tattoos might symbolize unresolved emotions or memories that are still present in your subconscious.
3. Desire for Expression: If you have been contemplating changes or expressing yourself in new ways, this dream might mirror your own desires for personal growth or transformation.
4. Symbol of the Past: Seeing an ex in a different light could indicate that you are processing your past and how it has shaped who you are today. The tattoos could represent the marks left by your experiences together.

Consider how you felt during the dream and any personal connections you have to tattoos or your ex-husband. This can provide further clarity on the dream's meaning. If you have any specific feelings or circumstances surrounding this dream, sharing them can help refine the interpretation.