The eggs do look good. If they are bad they will turn yellow and grow mold on them. You can candle the eggs but I wouldnt reccomend it. Out of my first clutch all of them hatched except the one I candled. I dont know if it was coincedence or what. I also put it back in the same exact orientation but it still didnt make it. If you do it only do it to one egg. I started my eggs out at72 degrees for 4 months then slowly increased the temp to 78 in about a months time. I also added a little more moisture but not too much in the last month. My eggs hatched in 7 1/2 months.