I think it came out better than what the covers artists are charging $200-500 for, but certainly not professional level.
huh?? it looks better than what a pro would do, but it's not pro looking?
When I first saw this, my initial reaction was that it's got too many glow effects to the point where it's looking a bit tacky. Like, someone just did a youtube photoshop tutorial on glow effects. Then my second thought was what does Immortal have to do with a rope lasso? But then reading further it was mentioned that this is supposed to be a DNA infinity sign, which wasn't clear to me from the get-go. Perhaps because it's deformed/skewed.
Howard is absolutely right on the font. Times isn't really the best font to be using as an eye catching title. Historically, Times was created for function rather than form. It was started in London Times newspaper, and became the default for standard print media because of it's thin profiling ability to fit more letters on the page, as well as the ease of reading because of the serifs (your eye naturally follows the serif lines horizontally). Typically you would use Times for large blocks of text, in a more legal/sterile fashion, not for throwing lighting effects on and letting it hang out there in the open by itself. Definitely not "science'y" if that's what you're going for.
You could use Helvetica, it's a much more solid looking font, but still commands a professional look. It's also the font that is normally used for Periodic Tables, it's clean, bold and not dainty looking.
But, one thing a professional cover artist would do is not just stick to one font for the whole thing. That's a clear indication of someone who is an untrained artist. Most print media these days mix-and-match fonts all the time for different effects. It's not willy-nilly though, they choose fonts that fit well together visually, but strategically for standing out on their own.
For example, you *could* use Helvetica for the main title, being bold and clean as it is, perhaps a fancier but not flamboyant serif thin-style font for the sub-header "A Genesis Endeavour book" (since it is descriptor line) -- not Times, anything but Times. Then for your name you could go with clean and bold again, but changing the font from Helvetica to something else. This way all three lines stand out on their own, but still work together in making it read more interestingly.
I'm not sure why the T is inverted from the rest of the title...that looks strange to me.
Now my other issue with this cover-art is that you're colour palette consists of mainly red white and black, while the Gaussian blurred whites are becoming more grey than white. Personally I'd tone down the whole photoshop filter look, meaning, cut back on the glowing by at least 40%, but also I'd play with the colour choice here so that you don't get that greyed out look. I'd also play with the layer blending style so that some of the background texture comes through in the glows. Try messing with the layers using Lighten, or Overlay.
If you can, avoid using black for the font outlines - in fact I wouldn't even outline the title. Just look at your name, it stands out cleaner than the title even though it's a smaller size. If you're absolutely married to the outline, I'd suggest using a darker red or maybe a more complementary darker colour. I realize you put the outline there because of the glow effect, which is why I mentioned the glows should be toned down or perhaps veering away from just stark white/grey.
As for the background, I like that you're thinking about depth here, but the BG image could scaled down and tiled a bit more. This would add a bit more texture to the image, and fit better with the details of the Lasso DNA Infinity thingy since that element has a lot of visual noise due to the details. For the dark fading out along the edges, try putting some colour into it like a smidgenof dark blue. This would contrast the colour value better and would make it less drab and dirty looking.
You are probably going to get offended by this feedback, especially since you already invested a lot of your time into putting it together, but this is just my honest opinion and suggestions to making it look less generic and more interesting at a glance. Good luck.