Hey Fatal, you've got a nice gallery here :-]
I like the way you use C4Ds, and while a lot of your pieces have a monocolor scheme, they don't feel flat. It's really important to make the image dynamic when making monotone graphics, and you pull this off. Here's an example of what I'm talking about:
This tag is entirely green, but instead of looking boring due to the lack of color variety, it's interesting because of the very nice contrast and lighting. It's quite balanced imo, and the final outcome is cohesive. It's always important to "blend" the top image in with the background in whatever way possible, and I see that in your works.
Moving on, it seems to me that you're experimenting a bit more with effects. This is great, and you should keep on doing that. Personally, I believe the best way to get better is to try a lot of techniques, so in the end you become more flexible. I would totally encourage anyone to expand their borders, and I'm getting some of that from your latest tag (the one featuring a car).
Good points aside, I have some nitpicks. First off, borders don't always add something to a piece. I can tell that you're pretty fond of them, but in some tags they're not necessary.
In the first graphic, the uneven border honestly throws me off. It doesn't feel right, for a lack of a better explanation. I'd say it even makes everything look unequal. I bet the signature would've looked totally fine without it.
As for the second graphic, the border is a solid green color that is too eye-catching compared to everything else. My eye was first drawn to it instead of what my eyes
should have been drawn to (the person). For that tag, top and bottom borders probably would've worked better, along with a slimmer but longer canvas size.
Also, I've noticed that your signatures are all center-cropped. There are no exceptions to this, unfortunately. So you should really experiment with other crops. If you stick to the same placement all the time, the overall look or first impression of your works all together will not be as impactful as it could be.
I know center crops are best for adding multiple effects, but left and right crops work out fine as well, and there's more space than you might think.
So yeah, that's all I have for you in terms of graphics. I can't provide c+c for drawings, because I don't draw too well myself, but the latest drawing you posted is stunning. Will be keeping an eye out for more stuff from you :-]