This Thread Isn't Working

The quilting thread I'm using is variegated in colors that go perfectly with the quilt top, and the thread itself is great. But the dark green in it is just too dark and too frequent for what I had in mind. I wanted the quilting to show up, but, well, not quite this much. The photo damps down the contrast a bit. It's more obvious in person. 

The lighter parts of the thread are much better, though, so I'm going to look for yellows, golds, and light greens. And hey, the fabric colors in this photo are so close to real!--even though I took the photo under a fluorescent lamp. 

By the way, I was going for a casual look, with large stitches, but the lines are definitely wobbly and the stitches uneven. This is because though I'm right-handed, I did all this stitching with my left hand. The hardest part was controlling the depth of the needle-travel. I didn't have much fine control. The next hardest task was getting the knack of tilting the needle enough but not too much, and bending the quilt sandwich to get the stitch length right. Meanwhile, I kept forgetting to pay attention to the direction of the needle. The whole process is very slow, too. It really shows how much right-hand skill I take for granted.  

And why, you may ask, am I learning to quilt with my left hand? I make my living via the computer and spend significant personal time on it too. What with mousing and the keyboard layout, my right hand, arm, and shoulder get overused. Right now, I'm only a few steps away from developing significant problems. I have my ergonomic keyboard set up to give my left hand more to do, and I'm trying the same thing with hand quilting.