There's this painting in my friend's basement which belongs to his landlord. It is about 5 feet in length by 3 feet tall. It is done in pastel colors, mostly a pink/mauve color. It has sparse splashes of deep blue and gold. It seems a sheet of plastic, similar to a garbage bag, is attached using paint. It is painted over with the mauve paint and some blue and green spray paint. Too much detail? Sorry... The signature appears to read "Angus". Any hints, ideas, or suggestions?

I'd leave it where it is, an attempt by an unknown artist.
But I suppose you could lug it around to a few galleries.
Trying to describe it without a picture isn't going to help much.