Affinity-HD- is devided into modules for this specific reason, if you want the sky only, go on the download page and download the SKIES MODULE. This module only enables the sky / sun / moon from affinity and nothing else. I might suggest you also get the CORE MODULE for the extra custom lightning, but thats all up to you.
When 1.11 comes out 1.10 goes into legacy mode because of the new pack format, that means no updates for it anymore, however since 1.11 only adds some textures you can download the 1.11 version and just edit 1 file from the zip to make it work with 1.10
I took more then i than i can handle, started working on the windows 10 version, started working on higiher resolution versions, probably atleast a week more of work then 1.12 will be released. Untill now you can use 1.11, but missing some textures.
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