1st one : i think pfft lmao needs more and i'd lose the right side part
2nd one : rocks though, you've blended the focal a bit too much and add a border to it to clean it up a bit ( new layer, ctrl +A, goto Edit, stroke, first one 3px black, second one 1px white set the layer to overlay

)
3rd one : not too bad but the focal needs some work and it's a big bit in my opinion
4th one : nice BG and i like the " aura " round the focal but the focal could be a bit bolder
5th one : same opinion as the 3rd
6th one : I dont like it lol it's a nice size but it looks a mess personally so
nice work overall
