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Great improvement. This size to me is much better than the one you used before. However now you have more important factors to work on such as render choice and color schemes.
This is more of preference than it is of knowledge but I'd say choose a render that has vivid colors so you can use them to create your signature. After choosing your render, try to create your background of the colors of the render, so it fits in. If you're using lights, you could put it on screen, hit Ctrl+U and change the color hue to whatever you see fit.
Overall it's a bit too monochromatic, in addition, you need to work on your depth of field as the subjects in the foreground and the background are equally sharp and clear. Text placement is kind of wrong because it is exactly in the middle of the signature, I'd say you should follow the rule of thirds (very easy).