Your table runner looks very nice.
FMQ only gets better with practice. The more you do, the better it will look.
When you practice FMQ, you might find the results more pleasing if you use a thread colour that blends more with your fabric. Once you are happy with the results, you can try threads with more contrast.
I personally like to use varigated thread, especially King Tut. That way, I get some that blends and some that contrasts more.