I don't have the original file anymore

Regards, I like this skybox of yours best, the galaxy Andromeda has arrived and the fusion is already in my mind ... but the background of your skybox is too dark for me. I've been playing with the darker skybox for a while now, which is not so good in the long run. I like another Skybox from you very much SixDice Quim (SkyBox) 2048dds, now my question, is it possible that you merge these two? So make this skybox brighter with it? After a long search, despite the poor quality from the workshop, I use the "starry sky", a skybox made of these three elements would be my question and request.