Echeveria not looking too bright

[aurelie.]

Hey! I have an echeveria (according to the lvoely ppl who helped me on the succulant ID forum it is aither a Echeveria lilacina or Echeveria secunda). It is in a pot with a crassula ocata 'gollum' and is nto looking great. When I got it it was in flower and all the leves were nicley stacked. Now the levels have widened and it even started bending towards the window. Also the leaves at the bottom strate dturning a bit black and haveing large black spots (like burnt). I asusm it was lack on light, as leaning towards the window would seem to indicate. I also thought it might have too much water. Moved it to be in front of sun and in a warmer room to dry it a bit, and now its lost its black leaves. The soil is completely bone dry for about 4 cm (1.6in). I have now moved to a colder room (11°C, 51°F), again next to the window and hope it will do better.
Does anyone have any better ideas? The crassula got mealybugs this summer and the echeveria was somewhat affected too, but didn't seem as bad.
Here are photos!

[majcka]

Deffinitely too much water ant too low light for Echeveria.

[KittieKAT]

I agree, u need to use a better mix and slowly adjust the plants to stronger light over a period of a week or so to ensure it won't get scorched.