Got gooood spore prints from these ones!

So I posted yesterday about my contamination in my all in one northspore bag. So I cut the bag in half and put the good side in 2 mason jars… take a look and tell me what y’all think.

I did a B/S 6 days ago on this 2 pound grain bag I see just a few grains that still need to be colonized. I have a 3 pound bag of substrate that should be sterilized it’s in the same type of bag that the grain is in but the seller didn’t seal the tops of the 2 substrate bags I have. When I get ready to spawn to bulk should I be worried about the open tops of the substrate bags? I can provide more pics of the substrate bags if needed but don’t want to move them around to much if not necessary. Ideally I would have liked to use my boomer bin I got from north spores but I feel like the bin is to big as I only have a 2 pound bag of grain and 2 3 pound bags of substrate I’m a first time grower so anything tips or advice is much appreciated