Not bad. My only comment is that the background seems too bright in the first one - maybe a bit overexposed as it tends to distract from the main subject - the butterfly. I might have also tried a different angle if possible (I know that butterflies can be skittish), to show both wings.
For the second one, don't you just love it when a piece of grass pops up just as you are taking the photo . I might have been tempted to crop out the flowers on the left and some of the miscellaneous vegetation on the top as they are a bit distracting.
Thank you for taking a look! I was so concerned with the butterfly itself I did overexpose the background. I will probably work on both a little bit more. I have another that has both wings but isn't quite as sharp. As far as the Mantis goes, I thought about a tighter crop but that kind of made the blades of grass even more prominent. It kind of feels a little "primordial" to me the way it is.