Apologies if I missed a nuance but it would be more helpful if you explained why...? Are you saying the OP is spending too much time pontificating when they should be handing the work to a trained professional? Or are you disagreeing with what they said?
You have to read the three reasons posted above and then the explanation. The service as implemented on the backend looks good but on the front end they need some help of the professional kind.
Also, including the Aviary viewer in the demo takes away from the product.
To this comment - yes, that was what I said originally. agreed.
To the above response, if it was good enough I'd pay for custom branding for sure. Is the aviary module supposed to be part of the service? For me, that's not really a good addition. Perhaps as an option that can be enabled. If you could just give me a really nice looking modal that allowed a file upload through the ways you provided, hosted the files for me and gave me back a url, that would be enough to merit a small payment at least. I'd only include a very small branding badge at the bottom but have the option to remove that for an additional price.
Stop. Hire a designer.