For 1 you can clone out that bit of grass that is going up its rear.
2 - nothing much needs to be done. Is a very shot of the bug in its environment.
3 - I like how it is all sharp and the claws so distinctly visible but without a head I would put it into a shot of vegetation with the bug there as added interest.
Thanks for your input Bobo. Re. pic.1 I can't do anything as I'm the one poking . No seriously I would have removed the thistle too, just wanted you guys to tell me with authority. And Peter sorry I didn't see your thread "post your insects"