Polish Molish Meadow is one I'm likely to wear during spring, a light green base with other green glitters. Also Barry M Pistachio is one for spring, its a light green, plain cream polish.
This is another polish from the Aqua Aura collection with shimmer, however unlike the others the shimmer on this is barely noticeable on the nail to the eye or photographed.
I think Orly Plastic Jungle would be a good polish for St. Patrick's Day although it is hard to photograph accurately. Fancy Gloss Rust Shards is a good gold looking flakie which I will be wearing over 17th March.