Edited.

First of all, these are all interesting and cool to look at. I like them all, as usual. :3
Second of all, the first one is by far my favorite, for the same reason I'm always badgering at you. The first one has the best contrast, by far! It seems when you start to use colors, you forget a little to make your drawings pop. I've turned two of your pictures into grayscales to show you my point:

Awesome contrast! This thing looks like I could pick it up and carry it around if I wanted to!
http://www.eterna-soft.com/images/contrast.jpg

Decent contrast, but a bit on the gray side...noticeable difference, right? ^ ^"
http://www.eterna-soft.com/images/contrastno.jpg

All your stuff is always cool though. Good grasp of form and such. Nice and interesting shapes. Keep up the great work! ^_^

Thanks for helping, Hoplesscomposer. =D

Okej, this is good to know. I think the same, but I needed to hear it also so I can apply it easier. I was trying changing contrast, but I did not get it good. Or something. I will test gray scaling pictures here on.

Thanks for helping, HopelessComposer! =D
Hai, np!

I have been working on a useless piece for two days >_<, but I have left it. I update in some days with things.
Heheh, can't wait to see it. And don't feel bad. My last painting was done...like four months ago? > <