So sad. For me, Pixa is the best image manager on the market and with two or three tweaks it could be anything anyone would want to manage all of their media (including videos). I hope you change your mind about this. You have an incredible product in your hands.
(Sorry for my bad English, I'm using Google Translator)
Sell it to someone who will keep it alive. Why let it die! Most tech companies that are small simply don't know how to market. Its a great product and with the right attention you grow your audience to be huge. Then convert your revenue model to a $14.95 yearly subscription or some reasonable subscription for future people so you can pay for advances. Shame if you let it die.