Thanks for the feedback Jacobite!
When I started with chapter there were none Lion bits. But hopefully for me HE White Lions were released and Scibor also started with lion range.
Here is back shot. I think Lion is a strong theme for marines and gives them unique look
For the yellow. Tactical were painted with Sunburst Yellow. I wasn't pleased so I bought Golden Yellow. Result is much more cleaner and smoother but on the other hand Golden Yellow seems too dark
So I will probably stick to Sunburst but will try to get better look