i like your lighting in the 1st but realy hard to see the focal , i like the effects u put in it and the red color was a good choice .
2nd tag - i like the focal and effects could be nicer with better colors and lighting, i think lighting looks a bit washed out .
3d tag-i like the colors and the focal and the textures of the bg to blend with your focal and lighting and depth looks good
problem is i feel the focal is too big and text is not looking good with that font id remove it.
4th tag-i feel u over blended kinda looks like floating head syndrome . i like the bg effects and lighting on it those colors are nice but i think it would look better with some more color added.
5th tag- is my fav so far out of these i like the focal allot hes cool looking and the effects u did in bg looks pretty good but again on the colors looks like your just adding a gradient? and be done with it .
6th tag - another fav i love the concept of it but i hate that team lol but nice use colors here but again lighting looks flat need more depth . but over all man gj.
last-i like the flow us tarted with and lighting is washing out the color need try find way make u colors pop more. i like the fire effects but the focal just looks placed. u kinda ruined the flow with the focal a bit .