Welcome! Looks good, the text fits well, C4D's make it more interesting, and the resolution is good as well. But, the text is a bit too far away, lighting is a bit off, since you didn't show the light source hitting the gravemind. Either tone the opacity of the light down or use a different filter for it. The C4D's are a nice touch but the colors don't fit the color of the gravemind, and the light blue bar is distracting. Finally, you should have added a bit more depth to the gravemind itself and the C4D's, and finished off with some gradient maps, because the colors are uneven and flow isn't that great. It's the first time I've seen your work, look at some tutorials and keep practicing, you can only get better