It's always a challenge to make a critique of 100 words on something that could easily be resumed by one word: flawless.
This is indeed a beautiful picture of something that is photographed many and many times; every photographer seems to like butterflies; yet this picture is unique. The butterfly gains impact due to the soft, and I would say, tender colours of the rest of the elements and also because of the fact that this is a square photograph. Perfect focus and well balanced light make the green and the pink tones match very well building a lovely bokeh that adds a fairy atmosphere to this piece of art.
I really like your photos, it's the style I love. Simple, yet breathtaking.
I have to say, this is one of my favourites from your gallery. The pastel colours in the background are so soft and warm, they give me a nice feeling and are easy on the eye. The atmosphere they create is wonderful.
The focus and lightning are perfect. This photo is very sharp and clear, with no noise. The blurry flowers create a dreamy effect, very beautiful!
The composition is strong. The way you framed this photo is perfect as well. And I love how the place where the butterfly is standing is lit. It makes it stand out even more.
As a conclusion, I would like to congratulate you, you did an amazing job with this photo, as well as with the rest of your gallery!