Hello! I just want to point out some very crucial and important things that wrong about your work. Please don’t take this as rudeness, as i’m an artist myself, and just wanna help you out! Anyways, here’s some feedback and things that I saw, looking at your portfolio.
The artwork is very low in quality. It seems like you went into Blender, made a render out of yourself, and put some free effects into the background. This can been done very easily, and dosen’t take that much time to do.
I would look up some tutorials on Youtube on how to make ROBLOX Renders in Blender or Cinema4D, as I see that this was made in Studio.
The lighting can be better, most of the renders are plain, adding light helps it “brighten” it up a bit.
Iv’e looked at your logos, and most of them are from Google. This is plagiarism, as your claiming someone’s work as your own. Using any of this could possibly either get you sued from the owner, or terminated from ROBLOX due to copyright reasons. Unless if i’m wrong, if you got permission from the owner of the artwork.
However, some of your work is not bad, and I do see potential in you. However, if I was a customer looking for GFX, I wouldn’t be interested in hiring you. My advice is look up tutorials on Youtube to help improve, and mess around with blender settings to find your style.
Sorry if I sounded rude, as it’s constructive criticism. Good luck with your commissions!