That's pretty good actually. One thing in terms of quality to sort out would be to compensate the stretching. In the skin file the different parts where you paint on have false height-width ratios in relation to the 3D model. You have to stretch your logos accordingly to make them look right on the actual car. This becomes especially important if you place logos in a tilted angle.
I have to correct 5tag's typo, because what you need to do is squeeze the logo's . It's relatively important and makes a more realistic look in the end.
Keep it up
Edit: you could try it now on the last skin. I guess you have everyting in seperate layers?! Then just try it and squeeze them now..
It sounds harder then it is.
Your skin could look a lot better than it does now if you took some time to make the design smoother and find better logos, www.brandsoftheworld.com and www.seeklogo.com are good places to get them.
hello guys, this is the first skin i uploaded, it's a kind of replica of kawabata rps13, but not really... if someone could make another team toyo drift skin, it would be nice sorry for the In Game pictures, it was made during twin with a teammate, don't blame me... so here is it: