I may have done a pretty poor job with the canvas overlapping the stem and I would greatly appreciate some advice for products to apply over the rough edge to smooth it out. I applied filler only over the stems, thicker in this area as advised but the edge of the canvas is very apparent as are the indents from the nails. Any thoughts on products that can help smooth this out before painting? I read a little about two part epoxy, but epoxy scares me a little. Thanks in advance for the help!