Well mainly just the first since the second one is probably just hue/sat-ed up.
I use PhotoShop 7. I know the maker most likely used selective coloring, color balance, and hue/sat. Also, I don't know who made them (or where my sister found these at. don't think it was LJ.) so that's a no go. I tried using a light green and putting it on sat but it didn't work out all that well. Any ideas or tuts that could help? I've been through lists of tuts but still haven't found the right kind.