Sunlight that passes through a window is not direct because regular window glass cuts most of the UV and some of the visible light. I would not think a west facing window would present any problems for your plant given good ventilation and moderate temperatures. I have a bunch of succulents growing by a SW-facing window that gets hours of sun year round and the extra light has never presented a problem (if anything, it seems to be the best location in the house for this sort of thing).
The color does not look problematic to me. The thing you want to try to avoid is overwatering, given the succulent is indoors and the mix looks relatively rich. Maybe every couple of weeks? That's when I water my indoor Haworthias.
