Well everything is looking pretty good. They seem a little stunted but thats normal especially for a first grow and dial in.
The party cup grow is coming along excellent. I worked up a little secret project tonight for that to be revealed later hehehe For root wrapping I drilled the can I am using with the same basic hole pattern as the air pots I use. This should help with that issue. I went taller than fatter on container size to hopefully give me a little more verticle. Its been my experience that a taller pot yields taller plants than a shorter wider pot of the same size.
My Onyx is currently 16 inches and I dont think it will get taller. I used a shorter 1 gallon air pot to keep it shorter for my Phototron. It seems like when the tap root hits the bottom it stops getting taller so I was able to control height that way,
You know growing autos with my 2 x 2 x box I havent had to buy smoke since my first harvest hehehehe Nice buds though

My Flash Santa kinda looked like your picture 8.