These two are sexy!
wizz.png
I love this style, and have always meant to start it, but I can see some sort of laziness perhaps shining through which is a bit obvious. I'm going to predict that you did not render your stock and started painting over the top. Basically, around his head especially, there is a distinct line where the brushing stops to go around him, and doesn't continue on behind like it would if it were rendered. That's basically the biggest irk in this tag, just looks dodgy, and could've been fairly easily fixed.
Also, all the brushing to the right of him looks weird. It looks lower quality, rougher lines and the colours seem a little off too... Not sure if this was mistake/exporting issues, but I'm thinking just got a bit tired or something. :P
As for the tag as a whole, it feels a little empty cause you don't have many foreground effects / no real pop. It looks really good so far, but it just needs a few more details. Either some more brushing in a lighter/brighter shade, or some textures or something to add some pazazz.
I would've also moved him to the left a fraction and then up a bit too.
REVEAL.png
This one is so close to being truly amazing. And the only thing that lets it down is the text. I can see what you've gone for, and I probably would've gone for something similar, but it just isn't working I'm afraid. The colour blue over the top of that red just doesn't stand out enough and for that reason it is more distracting, it is hard to differentiate, it almost blends into the pentooling... So yeah, colour, but also maybe size /font, only because it covers so much of your pentooling which would've taken ages...
I reckon a textless version could look very good, only to flaunt the effects and stuff, but yeah, the text definitely needs tweaking.
And another thing, the edge of the white "sheet" looks really lq, like you've got a grey stroke or something. If you can tidy that up, it'd look perfect!
Anyways, you're getting too good and original. :P