That sounds like a fun thing!
Context/Situation: Dresses/outfits representing each planet
Person/group wearing the piece: group of people dressing up as each planet (maybe this is too weird haha)
How many pieces of clothing you would like: 8 (unless pluto is included)
What would you like incorporated into the design: The personality/colour schemes of each planet. Spoiler
Mercury: glittery or beaded, multicoloured but mainly blue standing out amongst an irregular pattern, strapless but floor length and sleek.
Venus: (slightly metallic) red v-neck simple but elegant, maybe a skirt that's initially tight but then has a wavy flouncy plane of fabric at the bottom.
Earth, little more casual, a pastel blue and green patterned jumpsuit with loose linen and straight legs, but the top has the off the shoulder wavy fabric, and then medium straps also, perhaps simple neat lace at some hems.
Mars: darker wine red 2 set of matching top and pants, like in a sporty way, the pants are a bit high wasted, and the top is a loose fitting cropped long sleeve.
Jupiter: see-through floaty blue fabric on long sleeves that are a bit puffy. Bodice is orange with sweetheart neckline. Empire waist and ombre tulle skirt that begins at orange and becomes blue all the way to dark blue at bottom (maybe this is a little weird haha).
Saturn: earthy browns or cremes simple dress with pencil skirt, maybe a cool headpiece in the same shades like a hat with a very wide brim like in an elegant way tilted to side.
Uranus: that blue colour, with silver embroidery along sleeves and bodice, floor leangth ballgown dress.
Neptune: blue, and green oceany, strapless and short dark blue base with green seethrough layered over the top and coming to knee length and floaty skirt.
I started off confident, and then the later ones are like, what am I even saying haha
Hope it helps!