The ladybird shot is a little blurry, what shutter speed was that? Might want to increase it.
The butterfly shot is quite nice, but the colours look a little funky. Not sure if that's chromatic aberration or something else in your post-processing.
Did you notice the little bonus in the butterfly shot? Tiny wasp?
So your exposures are looking ok. Now you need to practise your technique of sneaking up on them to get closer so you don't need to crop
You'll get much more detail and less noise if you do that.
My couple of tips for this:
- no sudden movements, especially when you've seen one and want to shoot it, resist the urge to suddenly lift the camera up because you're excited.
- make sure you don't cast a shadow on them. Most insects will buzz off if you throw a shadow.
- get down low, even if it means laying flat on your tummy in dewy grass
- take a shot from a reasonable distance to make sure you get something at least, keep camera at your eye and slowly move in closer taking shots every so often so you're getting shots progressively closer.
