Hi Linda - this is where women really have it over men, being so much smaller! There is absolutely no way I could do that list and come in under 9 lbs, no way at all!
I just cannot see how you have managed it, especially as your cute 28l rucksack is over two pounds empty! - I think we could use some tips from you!!
I am fairly hopeless at commenting on other pilgrim's packing list, unless they are crazy (some are) .. sure, all will go in a 28 litre - it is interesting to see some packs - big 65'ers packed solid! - honestly!! 25-35 is cool, unless you are a big person - though, you will need to leave space for daily food carrying ... you may want to shop in the morning and carry yoghurt and bread, cheese, sausage, fruit and so on - of which ... if you will be eating yoghurt out there you will want to take a spoon with you!!
You seem pretty cut down already, so you will know that you don't really need gloves as you can use spare socks as mitts, nor to carry two spare pairs of knickers - -one off, one on - what is the third one for?
You haven't listed a book, or notepad and pen, nor a tiny sewing/repair kit, nor a first aid kit - weather is rather capricious lately ... April it should be a wonderful bright late spring .. but on the other hand I have seen it snowing in April ... has been a really mild winter in western Europe so maybe we'll have a gorgeous spring! if not it doesn't matter as there are plenty of shops if you need more kit. I see you have the lightest "zip into own pocket" rain jacket .. do you think that will be enough? you don't mind wet thighs? An alternative is to buy an
Altus poncho - which means you could discard the pack cover.
Hang on! no first aid kit? Can you really guarantee that you won't fall over and graze your knees and hands? or get a blister? or insect bite? or inflamed tendons? or, that you won't meet a pilgrim that needs help from your first aid kit as their's is all used up? Think on Linda
In the end Linda - this is YOUR Camino, you take what you want, and have a wonderful pilgrimage
Buen Camino!!