Hi Steve,
I’m not realy clear about what’s wrong but I’ll have a shot at helping. I presume you’ve already fitted the bottom skins, after that fitting the side skins should be strait forward. They should overlap the chines and lay across each bulhead and the correct curves should follow from that., After the glue has dried it’s just a matter of trimming and sanding, The sharp angle you get between the two towards the stern flares toward a much smoother join at the bow.
I’m not sure if any of that helps, jobs like this seem simple when you have done them but can be a bit af a mystery when done for the first time.
Please post again and let us know how you are getting on.
Charlie