Waiting for Dinner

My hummingbird shots are improving, but they still need your help in getting everything setup to my satisfaction.  The BG is too flat and too blue and am in the process of redoing the BG for future endeavors. Focus, pose, and comp turned out well. I need some additional tweaks to the position of the flashes as the lighting is quite flat. I used 5 flashes (1 SB800 mounted off camera as the trigger; 1 SB-26 on the BG, 3 SB-26's on the hummer).  All flashes were set at 1/32 power.  Each flash was around 24 inches from the subject.   My guess is that I need to move several of the flashes away from the bird to get some subtly shadowing produced. I appreciate your comments and critiques. Thank you. D500 600 mm f5.6 + 1.4x TC manual exposure settings (1/200 sec at f18, Iso 800). Full frame, levels, Brightness & contrast, reduction of saturation of cyan 2 and yellow...........................Jim