I think you can leave the teal bench, and perhaps get fabric to tie in the teal, brown and black tones. A long cushion on the bench in plain black, with pillows in the print fabric, and then print cushions on the chair seats. Perhaps something like this? rice licorice Here is the other thing I see. What feels off to me is that the table appears to be no where near as wide as the bench, and of course curves in at the oval ends, so it appears that the people sitting on either end of the bench wouldn't be near the table. What you might consider, given that the table is not an heirloom piece, is getting a larger tabletop cut from a nice stain grade plywood. It could be a slightly larger oval or even a rectangle. You could attach it to the current tabletop, or it would likely be fine just resting on the top, since it wouldn't be that much bigger.

They have a high performance fabric that says it works well with pets and kids so no brainer that is the one. IMO if younreally want kid friendly get leather and FYI I never reccommend sectionals .

if you haven't already purchased from joybird, I highly recommend not doing so. I purchased the exact couch and after 4 months, have still been unable to use it.

I'm not in a position to comment on the furniture supplier but would like to make a suggestion regarding your choice of colour for the sectional. On your sketch, you show a white sectional but in your samples some of the colours are quite daring for a large piece of furniture. I would opt for a more subdued colour that you won't get tired of. If you like colour, go for the colour in accent pillows, it your get tired of them, it's not a big expense to change your colour scheme. Here is the sectional in what looks like a greyish green with your favorite rug and flooring.