You've gotten lots of good advice Janet but I'll put in my 2 cents' worth. And I'll preface this by saying that I also prefer a moderate-to-generous wardrobe, but unlike you I'm not a jacket person AT ALL. (I own 2 vintage dressy jackets that I rarely wear and..that's it!) Though, as previously stated, jackets:you :: cardigans:me.
-I agree that you should pass on the ones you've slated for donation. They just don't look very fresh to me.
-Denim jackets: can you think of any outfit you'd wear with the gray jacket that you couldn't sub in the white one (SO crisp and flattering!) or another in this category instead?
-Bombers: DEFINITELY KEEP the item in pic #3!! Can you think of any outfit you wear with #4 that you couldn't wear with #1 or #2 instead (1, 2, and 4 all seem pretty similar to me)? What would you wear to the rock show if you didn't have #7? #6 seems like not your colors tbh but I understand that the weight of this jacket may fill a need.
-Motos: In an ideal world, what would you wear with your navy halter dress? Could that item also go with other dresses/outfits? (I ask because there are two jackets that you're considering keeping to wear with the navy halter dress, but how often do you wear it? Maybe this jacket is worth keeping for now, but be on the lookout for a replacement that would be more versatile.) Would you ever choose #10 over #11 or #12?
-Blazers: pass along #3 but look for more of this color. I've done this so many times! Bought something for the color but the other details weren't quite right and so never wore it much and never felt great in it when I did. *solidarity fist bump*
-Misc: #1 and #5 are both rarely worn warm-weather jackets but you like the color of #5 a lot better. Is there anything you'd wear with #1 that you couldn't wear with #5?
-Long jackets -- all beautiful and suit you to a T.
Whew!
Oh, one last thing: I totally agree with Gretchen's advice to group by color and do another analysis that way. Sometimes I see different patterns depending on how I analyze and that can be really helpful. (Also for example a couple of jackets in the "misc" category look like motos to my eye? Similar cut/proportion in some way.)