Yeah, try one of the canvas stock sites.
Also try to get some work printed and hung in local cafes, bars etc with a sale price. The bar/cafe will keep something like 10-20% of the sale price typically (try to bargain this amount down and say that the cafe is gaining some artwork for free).
Otherwise there are art fairs and such like that you can attend and try to sell your work at.
But sales will be hard to come by. My aunt is a great artist but she struggles to get many sales despite being very proactive. Same with photography - you can make fantastic fine art photos but you wont get many sales at all unless you magic up a world renowned reputation, or sell things for cheaper on stock sites.