Trying to finish some old project
Base image
[img][img]

Nice start! Stuff like the roof, sides main reflection (between light and darker tone) and especially those darker tree shades need way more work.

Try to find references for you to allow how those parts approximately should go. Would help a lot to make it more "one" executionwise.

Welcome back! I'm relatively new on the forum so I haven't familiarised myself with the veterans here

Paint looks a bit odd, it seems too desaturated at the top? Unless you were intentionally going for a vertical paint gradient.

The overcast lighting of the base doesn't really match the new sunlit background either, You should at least run over the body with a white overlay brush to indicate sunlight cast on the car.

Also noticing a slight contrast issue between the wheels and base car, where the wheels have a red-tinted shadow?

You're on the right track, but you just need to work on the fit and finish of the piece.