Not very good C4D usage... color clashes 0.o And it's kinda unbalanced the text stands out way too much. i wouldn't have added the "drop shadow." And the text should be less bright
The colors and opacity of the C4D's aren't that great. Keep at it and I'm sure you could do better than that.
You should do some tutorials that are in the free tutorial section, or some cheap ones in the paid section. It will help you get back in the graphics swing of things. ^_^
Let's see if you improve on the second one. Well, as people said the tag you made is better than your current one. You should've added a light source, too and maybe changed to color of the C4D's so that it fits. Good as a try if you have been out longer.