The left side is quite good. The lightning is okay, the fractals are as well. But the left side is too monotone and empty.
interesting left side man, but the tag is killed by the plain emptiness of the right hand side. I find myself missing the focal by my attention looking for something that ain't there on the right... Try bringing your focal into the middle more so you even the negative space up a bit on each side, that would help this tag work with the current effects you have used. Or bring more foreground effects in that will lead into the right hand side a bit. Also try and bring the render into the foreground more as it stands its not much of a focal. Welcome back to the game mate, i have just got back into it a day ago after a year and a half without touching photoshop as well. LOL its amusing trying to remember all the different functions lol. good work and good luck rediscovering your flow
im sorry but the whole thing is hurting my eyes cause of the blur and copies you have, try to work with the depth a bit more, and also if you center your focal point you can fill up most of the empty space