Most of your tags would look better without the text, in my opinion text only works in some tags, not all the time. The times it doesn't fit it only look like it were slapped on at a random place for the sake of including text. Text can either lift or drag down a tag, add to the piece or steal all focus and kill some depth.
My suggestion would be to go easy on using text, if it doesn't feel 100% right and adds something to the piece without stealing too much focus, it's better to leave it out. You should also stay away from moving the text too far from the focal, like in your Metroid Prime, TGFX Halo smudge, and Only The Future Counts tags, since it steals the focus from the tag to the wrong place. You should also avoid to cover the focal with text like in your first Halo, Hermanz, TZS5 Halo4 and the two Halo tags under that one. By covering the focal you lose depth and it only looks slapped on. Touching the edge of the focal/render and about shoulder high is usually the best placement for text.
Your Miss Laurelle tag has in my opinion the best text. It's a clean easy to read font and that line together with it helps to still keep the focus on your focal.
And one last text suggestion would be to use clean regular easy to read fonts since the text in a tag is of such small size. It works well with handwritten fonts sometimes, but not all the time.

Enough about text, about the actual tags: They are all of good quality and your colors and atmospheres in everyone is really good. The thing you'd need to work on is blending, work more with covering the render characters since they look pasted on in most of the tags. Cover them with a little more effects and blend in the edges of the renders better. Your best blended tag is Halo Run.
My favorite tag out of all these are the Halo TCS5, really nice atmosphere and flow, delete the text and you have a sweet ass tag

Hope I wasn't to harsh on you, only trying to help and remember, what I've said is my personal taste and likings.

Here's examples on better text imo, some old tags of mine since I rarely use text now days:




Hope that my words may help you and a warm welcome to the Void Hult