I wouldn't call yours a "Strong" Scottish accent at all. I could understand most of the words with no difficulty and could probably have understood all if I were listening closely, which I don't when listening to songs generally since I'm listening to the music as well. Frankly you're a lot more understandable than my grandmother was and more than many of the people here in Virginia are. Liner notes may help sales I suppose. They'll also help anyone wanting to lift your songs get it right.
I enjoyed them.