Filet Crochet

I have been working on an  unusual looking filet crochet piece.  I don't like filet crochet but have made this one before ages ago and want to use different colors.  The main part is white but I haven't decided what color for the edging.  Should I use variegated or shaded or solid?  I want it to look classy.  It has seven motifs of which I have three finished.  I need to get a thimble because I have nearly poked a hole in the tip of my middle finger on my left hand.