The hook on the j is a bit too short and abrupt for my tastes, but that's what they are. Very good looking and solid overall. It strongly resembles Lubalin Graph, as any geometric slab-serif is likely to, but I think you noticed that too and included features to differentiate this. Am I right?

Just an optical reference for your C, G, Q and O: http://www.typeworkshop.com/index.php?id1=type-basics&id2=&id3=&id4=&id5...

This is really neat. I prefer the roundy version.
To my eyes, the F, J and W are too wide, the y has too many serifs (compare to the g or u), and the serifs on the V need to be pulled in closer.
Hope that's helpful! :)

Maybe pull down the top end of the C, c, and G more, and/or shorten its serif?