Could you please post the nozzle check print here, scan it, crop it just to the relevant part of the page and upload it.
Why did you replace the printhead - what was the problem ? Are you doing refill ? Which type of ink/cartridges are you using - Epson or 3rd party ? Are you using a resetter on the chips ?
You can do another Ink charge if you think that would help, but I'm reluctant at this time since you are using a new printhead .
The printhead has 2 rows of nozzles per color, and it appears to be an ink feeding problem within the printhead, that can be a clog, or air trapped or an impeded ink flow from the cartridges - e.g. insufficient cartridge ventilation - a blocked vent hole - or are these cartridges containing an ink bag ?