Keywords on old images
Having been here for over one year now, I have found that experience does make a difference. Over time, you get better at "keywording" your images. I have gone over my early images and found many that could use a "spruce up".
You will find that if you go over your early entries, that you will be able to find some new keywords to add.
Don't forget your early entries. They've been good to you. Be good to them.
I hope this helps you as much as it has helped me.