I tried to include some unique styles and summer colors in this dress. Satin or cotton would be the best fabrics for the dress. The ribbon would be satin.
I like this drawing because it has the classic girlish look of a lacy party dress, but the black lace adds a touch of modernness. The dress could be made from cotton or another comfortable fabric, or it could be sewn from satin, with black satin ruffles instead of lace, thus giving the dress a more formal look. In either case the pink trimming should be satin ribbon.
A tip for fashion designing is to always draw your figure before drawing clothes on her. This helps you get the right proportions. I tried to do this dress as a special occasion dress, with unique embellishments. I hoped the effect would be a somewhat modernized-looking dress with a mind of its own. The black spots along the hem and sides of the sleeves are slits with a different colored fabric showing underneath. I imagine the dress made out of shiny satin. Please tell me how I did!