Hi (this is not my first GFX) I would like some feedback on my new GFX I made! 
Better version:
(I forgot to save the transparent version so I have to redo this.)
Hi (this is not my first GFX) I would like some feedback on my new GFX I made! 
the buildings look a bit flat. i know you were trying to make spiderman stand out but having buildings all the same colours isnt it!! i would suggest adding depth of field to some of them. the light on the character’s head is a bit too strong compared to the background too. a way to avoid this in future is to open the background image you will use side-by-side w blender and match the lighting to that.
other than that, i love the details you added like the lil web!!! the pose is quite dynamic too and i love that
I would if I could the background was a 3d scan and I dont like it so I will update it
do 3d scans not include textures?? i remember seeing a blender plugin somewhere that imported real maps w the textures included
The buildings are all the same color it would be better if it is varied. Also, the shade on the head looks weird. And the background is much lower quality compared to the spiderman.
(Edit) Background looks much better now, now only the light on the head.
nice posing and all, it reallly doesn’t look like he’s pulling though, you matched the lighting well but you should upscale clothign textures, have 3d clothing, and make it feel more immersive.
The pose feels a bit unrealistic, if someone were to be swinging from a single point like such it would be far more dramatic. Did you use a reference photo from one of the movies?
Also Spiderman should stand out more imo, try adding a light object facing towards him.
Looks good though! 
I will try thanks for the feedback
one more thing, there is just really dark spots and really bright spots, the lighting doesn’t match up really too