Media Thumbnail Sizes & Words Under Available Options

Hi! I started working with you in early January but didn't have online access to my site which I do now. If you recall, I needed to change/add the media thumbnails that show up on the product sheet. They used to say size and something else, but I want mine to me a sparkle picture and headband color. The other issue is that under Available Options the words headband color and sparkle color are covered up by the drop down button. I need that to show the entire word. Thanks for your help! Angela