The first photo is that of an impressively large butterfly. The second, I feel, is laking in highlights and brilliance of colours, some post processing could bring that about, though, the photo as such offers all possibilities.
The red flower looks overexposed with clearly blown highlights.
The fourth could do with the same pp treatment as I am suggesting for the second, for that, too, kind of lacks in highlights and colour brilliance in the version that is shown here now.