Great to hear that you like the game so far. Here is a bit of info rereading the creation process.
Characters are based on DAZ Genesis 8 with a morph (Toon Princess). Outfit are also mostly DAZ, some I made myself (pony gear etc)
The overall story arch is sth like Voyager. The individual story element i got inspired by various sci fi novels. I block out the basic five point story arc in some bullet points and then flesh it out with quest step data
I wrote the game alone (code, story, art) but it took me about 3 years a few hours per day (i don't work any more and do this for fun)
Start out with a small game trust can be done in a few weeks, watch a bunch of tutorials. Then do a bit bigger ones...
I learned a lot compared to my first attempt. User guidance, UI, quest design, software designed elements, python etc...
Just watch a few tuts and try it out. Renpy has the lowest entry hurdle imho
Oh and the character style i use is classic cartoon 1:6 stylized (body is 6 heads high). Same as classic Disney figure proportions. I draw a lot and could build on that...
Environment, items, ships etc i did all in blender from scratch.
Would be great if you can leave 5 stars on the game rating, that helps with visibility.