Hey Dile brother. Keep up with those scott robertson style thumbnails dude. They are criticallly neccessary! do literally hundreds of them. Really look at what scott's lines are doing. Analyse where lines go, why they go there & what shapes they make. See how he continues a line into another part of the ship. stuff like that.
When doing em tho, keep your line quality as high level as possible. Really loving your progress bro. You will succeed.