there is nothing on there to be worried about, first thing first is be careful on your placing as i see many air bubbles, and could lead to a false reading as your sample will get pushed out of your cover, the last picture isnt coccidiosis from what ive learnt, if this was a mouth swab you would be able to see if it was canker, as you will notice movement on the slide, and canker cells move pretty quick, picture 4,5, and 6 look like plant cells to me coccidiosis is more rounder in appearance then oblong, if anything would be coccidiosis it would be your 2nd and 3rd picture, however you would need to count these, then calculate the safe amount, i have a list here on how to calculate i will drag it out soon and post up,