Nice looking holding pen and really good looking dock. Last year I built myself a holding pen very similar to yours. I went to pull it out of the water to get out the bass that I had put in there over a couple of days of fishing only to find a rather large snapping turtle.

2011 five acre pond. LMB, SMB, HSB, SPB, BG, CNBG, HBG, RES, WM, CC, BCP, GC, FHM, GSH