Well, since you asked for Cnc then i will tell you honestly.
No offense, but it is nothing special about it. There is indeed much much room for improvement. Which im here to support you. Your work didnt deserve the comments like above. Neither, you don't deserve the rep/like too. Instead, they should really give a honest feedback and tips, and not compliments just to cheer you up. Unless, they didnt know how to judge between a good work and a poor work. With this, I hope you will not get complacent over your "not so special" work and continue to upgrade your gfx skills.
I will give 8/10 for your efforts and hardworks you applied to it. But I will give you 4/10 for the work. Here are the rooms you need to improve. Blending, Depth, Use of Text, Use of Color and of course creativity!
Don't give up! I myself is not even a good GFXer yet but im still learning. So continue learning and never stop to try and try again. Im not intending to insult you. Hope you didnt get offended. Cheers! Nice try!