When choosing your outfits for your session you want to be sure to choose colors in the same color family so you look cohesive together. Examples being warm tones, or cool tones and even pastels look good together!
Keep away from to many busy patterns
It's best to keep away from busy patterns as it will distract from your lovely person! Lots of pattern tends to show up funny on camera especially if your session is outside. However patterned clothing is fine to wear if paired with neutrals; especially if you're in a grouping!