They look great. I wonder about the bottom being soft where you place them, they might settle quite a lot. I wonder about putting the quickcrete in the bottom bucket then setting 2 more buckets in and above the bottom one and putting in some screws to hold them together. Kind of make a short tree out three. Maybe with the weight only in the bottom bucket they would not be so prone to fall over. Maybe a couple of one inch sticks about 4 feet long placed across and through the bottom of the bucket would help keep them from sinking into the muck on the bottom. Great looking attractors. just tossing around ideas.