I agree with Kathy. If you must finish this quilt right away, try using more straight lines, either in the ditch or near the seams (on either side). Also using a thread that is closer in value to the underlying fabric will "hide" any "mistakes" a lot better.
I applaud your attempt!
and i agree. take it out,and do in the ditch or even a cross hatch.
Practice FMQ on a muslin sandwich..you can draw easy designs,with soft curves on it with a marker, and then try to follow the lines..with a contrasting thread..
this is the kind of project(removing the stitches) that should be done out in the yard..calmly.
if you lived closer, i would help you! Make sure the seam ripper has the smaller head on it..those stitches look tiny!