Referring by "God" to Spinoza's God (that is, one may substitute "God" with "Nature" following the title of this question can be "On Nature and Nature's Essence and Essence") and capitalizing this as Nature (vs. common nature in a broader sense)
My question is, for Spinoza,
1a) does God have (an) essence?
1b) if yes, what is the difference between God and the essence of God?
2a) does God's essence exist?
2b) does God's essence have (an) essence?
3) can the essence be "decomposed" of a "combination" of essential properties, or would essence be "non-divisible" somehow?
I would like the possible answers to be based on Spinoza's works. I understand that Spinoza may say yes, as I interpret his work, to question 1a, so you may proceed to 1b directly. If you are familiar with the idea of formal essence and actual essence, please help me understand whether the essence of God refers to formal essence or actual essence. Or you may provide some texts in Spinoza's work that may be interpreted in a way such that may reach a "no" for 1a. The central puzzle I encounter regarding 2a, 2b is based on Spinoza's statement, as I read it, of the existence as (at least, part of) the actual essence. The third question may be less relevant to what Spinoza suggests in his works, but rather relevant to what you think.