5 - Good. Likely good perserverance on your part and maybe the squirrels too. Criticism; a little 'closer'/bigger would have made this better in my opinion, unless you were going for a lot of 'context'/environment. I like that it is in a natural setting, but just would like to 'see it' more.
the critter did a nice job hiding, but he takes up such a small amout of the frame that the shot dosen't realy show that off enough. I like the inclusion of the fence and the post, the short and the long grass, lots of good textures here in a very narow color range, but I wish I could see more of that, well he's small enough that I'm not sure what he is.