1 is the winner hands down.
Those crinkly leaves makes me think the ferts wert too hot.
I'm gonna give a tip for Cucurbits like squash , gourds and pumpkins. they like load of organic matter anything which is well composted.
They like warm roots and moist feet!
Dig a square pit and fill with compost and slightly firm it as you go but not so it compacts until it is a mound.
Then dig a small trench around where you have filled with compost.
You then take some thick plastic sheet and cover the mound and bury the edges in the trench, keeping the plast kinda taught so any water runs of.
you then cut a small hole at the front and in set a 4" pipe and fill with stones, this is where you water and feed you pumpkin.
Marrows and pumpkins are very susceptible to neck roots and it is when water gets on the stalk it can rot.
By feeding through the pipe you get water and nutes straight to the roots and no neck rot.
Furthermore earlier in the season the black plastic warms the soil and creates a microclimate at night keeping your young plant warm.
At the start this is 100% hand water/feed and you may find eventually the roots may get past the plastic and find additional water but when you want to grow the best it can sometimes mean adopting a method which is labour intensive ie a labour of love.
Dunno if that is any help, oh almost forgot the plastic sheet as long as the soil has been well watered , the plastic sheet stops evaporation from the soil.
As A pumpkin plant is bigger than a courgette plant , maybe wise to have a watering pipe on four sides?