Wreath making can suck. Good job. For scavenged branches I like making a rope of them 2-3 time longer than I want the wreath round, saving out bits with interesting things like pine cones, and then twist the rope into itself for a circle. Then I tuck the interesting bits into the twisted circle.
Which reminds me, I haven't done that yet. Twist ties are a good idea. I got some of them. Thanks.