The meme is basically a photo of a frog sat on a log in an unflattering way in which I've drawn my own frog also sitting on a log, although it looks similar, the head and eyes are angled slightly differently, the log is different, the colours are different shades, I've added extra finer details and exaggerated the unflattering parts a little more etc (I sketched it out and then finalised it in Illustrator, took me around 4 hours from start to finish to complete).
I'm want to sell the drawing I made based on the idea from the meme I seen featuring the frog, so I done a reverse image search to make sure there wasn't anything else like this but I I found a company selling prints of the actual meme with the frog, as in they've just copied and pasted the original image of the frog and changed the font and changed the wording a little. As far as I'm aware, I don't know where the original photo came from and I'm pretty confident they don't own the original image of the frog due to how badly they've cropped and tried to edit the original meme.
So my question is, I'm just worried incase this other company try and claim copyright as the concept is similar expect theirs is an actual copy and paste job, they haven't bothered to try and create anything new with any artistic flair, am I good to sell my version of the frog on a log without any worry?
I'll attach some images below
My drawing

The copy and pasted meme but the've added happy birthday on it for some reason
Image removed to avoid third party copyright infringement - Moderator
P.S the original meme had similar wording to what is on both photos and I've added feet to my drawing as the original frog's feet are in the water but the copy and paste job by this other company has cropped that frog legs out.
Thanks for any advice and opinions