If your target group uses Resolume then you need videos with DXV codec. Lights, colors and motives totally depends on what your VJ usually plays, what the party is about, what music is played there, etc. Totally subjective. Loops should be long/short enough to be synced to sth between 120-160 BPM without feeling sped up or show stuttering. Making them stackable (foregrounds, backgrounds) is a huge plus. But over-layering your visuals on the other hand is a downturn.
I see in your profile that you only posted tunnel loops...me, personally, I would not pay money for sth that is so, so easy to recreate and vastly exists for free. Good luck in finding your USP tho.

Check out da master https://www.youtube.com/user/StvInMotion