Which type of Trees
Can you help us identify these trees? Then can you tell us if the tree appears to be healthy? One or two types appear to shed their needles. Is this normal?
Hennepin County Minnesota tree identification
I think you have a Colorado Blue Spruce and an Austrian Pine. The spruce has a problem. There is a pine spruce borer that may be the culprit. The needles drop on the pine appears to be normal. The bare branches on the center photo could be sawfly or various other problems. I recommend that you have a certified arborist make a house call. We cannot diagnose the problems with just photos. Check out the link but it won't replace an expert on site. https://apps.extension.umn.edu/garden/diagnose/plant/evergreen/