If a white blouse you've ordered on line looks more see-through than you expected, you can keep it and layer it under a slip dress. It will go especially well with a floral slip dress in spring, as shown in my photo here.
My rose print slip dress is a Dolce & Gabbana imitation. It already comes with a corset top, but I still prefer adding on a black corset belt. Those of us with a proportionally short torso just must accentuate the waist. If you have a long and lean torso, then you can do without the belt.
While maxi is the trendiest length of the season, midi is still in. As a matter of fact, midi is the most flattering length and will never go out of style. So, it's definitely worthwhile to invest in a floral midi dress that you can wear every spring from now on.
Good luck on finding a fabulous floral midi dress that matches splendid seasonal flowers!