Great find and kudos to you for going back and asking! I've read several places that it's not good to store cloth in dry cleaning bags (traps moisture, off-gassing could discolor, etc.) so if you haven't already you might want to remove your awesome stash from the bags.
No one would be able to tell this is your first embroidery unless you told them! And it's even more awesome that you found your own pattern as a beginner. The colors are great and while it's noble to pursue quality stitching (at least that's what I tell myself when pulling out unsatisfactory stitches) it's obvious here that your stitches have feeling which would be a shame to lose to "accuracy."
YOWZA! I have that font, because I couldn't resist, and it never occurred to me to do something so awesome as this with it! BRILLIANT! I may have to do something similar. I'll try not to copy exactly, but...
I like that your organizers make it look like you've been collecting and organizing your craft space and stuff over the years. It sounds silly, but it's not unlike interior decorating that reflects the life of the people rather than the showroom of the manufacturer. I can see the appeal of the matching/coordinating storage boxes, but I think I'd feel more inspired and creative (i.e. curious) with a more collected-as-we-go collection of containers.
If you use ceramic for your cup, etc. you can get inexpensive ceramic paint at the craft store and you won't have to seal it or worry about it coming off. Sometimes you cure it in the oven, but that's it.
With the right high-adhesion primer you can use acrylic house paint (or craft paint) on just about anything.
I think embroidering your blood spots on your towels would be SO classy (yes, classy) and high-end looking (but a lot more work).