I guess you only finished one side of the wing, then build the other side with the same bow in the wing. It will fly well enough!
And a little more on building wings, I build the ribs & wing spars with ca & check for errors before sheeting them with white glue,
then you can make sure the wings are not bow & have plenty of time to twist the wing into the proper washout before they set.
wish you have good time with your DJ-1 cause I have fun building & flying it.