Hi Mark, and welcome!
I really like this collection. Just some minor comments:
1. I love everything about this image except is seems to be tilting slightly downhill on the left side. As I look at the horizon, it seems it should be leveled off a bit. Of course, that could just be my eyes

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2. Very nice macro shot. I'd like to see a little more depth of field.
3. Love the lilly.
4. Nice composition. I'd like to see a little more shadow detail.
6. Winter Scene: beautiful. Lovely light.
These are very nice overall. Thanks for sharing.
Jim