My forte is pencil drawing, and I've recently started selling my work, mainly on a commission basis. I've recently noticed on one or two of my framed pictures that the paper has started to warp/ripple slightly in the frame and I'm not sure why....I have been working on ~ 165gsm. Could it be that I need to work on thicker paper to reduce the chance of it warping? It's only happened on a couple, and they were framed at different framers so it's unlikely to be a framing issue!
Thanks in advance - any advice would be much appreciated
