OKAY. Seeing has how the last journal caused more grief than it was fun, I'm going to slightly change the game here. It's going to be the same as the OC game, but instead of characters I figured featuring people's art would be better. So like before just simply comment and I'll feature three of your  pieces I like and I'll give you my input (if you want critique, feel free to ask but it's going to have to be brief).

1.

What I like about PK's work is there's a lot of fluid movement and rhythm in them (his/her two sketches display this well). His/her sketches are usually clean and easy to see (not a lot of smudges which I have issues with -dies forever-). S/He also has a lot of creative ideas, some that I find to have a really killer concept.
2.

Since he asked me to focus on his OC ref page, but I still don't know what he wants me to critique on (specifying would be most helpful!). But regardless, the art has very nice character designs. The colors are nicely blended most of the time, the scans are nice and crisp (no fuzzy or low quality areas). The artwork overall is very clean and neat.