Maybe. What is it we're looking at? What kind of wine? SG? How long has it been in that carboy? It looks pretty clear and therefore I'm assuming it's done fermenting, whatever it is, and is just bulk aging. If so it kind of looks like you've got too much headspace in there (but hard to tell from the pics), which can lead to infection as well as oxidation of your wine.
That could also just be some sort of residue, but it doesn't look good. How does it smell/taste?