I wouldn't spend money on social media until you have some sales and bit more experience under your belt. Facebook advertising may well turn out to be effective for your kind of business but, unless you know who your target market is and what they are likely to buy, you may find yourself just chucking money away and getting nothing in return. Instagram and twitter are fine since so long as you don't get too absorbed into it. They may be next to useless for getting sales but for getting yourself known worth a go - especially since you have exclusive imagery that is naturally shareable? Sorry I can't come up with any ideas for instant success but don't be too downhearted, it will all come if you are persistent and patient.