An analogous scheme takes colors that are adjacent to each other on the color wheel (like canteloupe, tangelo, and lady bug Memento inks). While bright colors can look cheerful in an analogous scheme, the combination lack the energy of complementary or primary color schemes.
Personally, I think there's quite enough going on in these medallions without adding more energy from a kicky color combo. But that's just my taste. You are certainly entitled to get as kicky as you want.
A Word about Card Orientation
You may or may not notice that I'm making portrait cards with the fold on the side now rather than the top. I actually prefer the top fold, but Operation Write Home's preference is the side fold because it can be tucked halfway in the envelope with the front hanging out for display. Cards folded on the short side have to be tucked into the envelope completely, which makes it hard for the troops to search for a card they want.
I'm working on the next What Makes You Unhappy? post. Thank you all so much for your encouragement and enthusiasm for the series. It's nice to know that my words resonate with many of you.
stamps: Papertrey Ink Mendhi Medallions, Birthday Basics
paper: PTI white
accessories: dimensionals, circle punches (1 3/4" and 3/4"...I think, but don't quote me on it), rhinestones