I'm here, albeit briefly. Packing is taking up way too much of my time.
Regards to product layering.
Serum first.
Eye cream
Moisturizer.
If you need to use an SPF I would in fact mix with your moisturizer to save from applying too many layers.
It's very rare for products not to carry an SPF. Most moisturizers or foundations do, so check because you might in fact be over applying.
Always wait the longest amount of time poss before applying foundation, it will ensure the product doesn't just slide right back off again.
Re the bronzer. It's best not to apply daily as the tanning agent will build up on the skin and cause more problems and blemishes. If you do need to apply its actually best to apply to a clean skin minus all the other stuff so the active ingredients have chance to actually penetrate the skin and become 'active' leave before applying products in top as this could hinder development.
I always clean skin at night, apply tanning agent. Brush teeth etc and then about 20 mins just before bed apply a night cream.
The night cream is slightly thicker so helps to prevent the tan from rubbing off on the pillow.
Hope this helps?