Awesome, it's actually really realistic! Do you mean Titan or Europa though because by the look of the colours I think you could mean Titan. There are frozen lakes of methane on Titan but Europa is the one where the hole surface is ice.
If anything remotely like that thing lives on Titan, it may just be better not to even bother to try and get there. The creature is great, the pigment on its hide, the illuminated trails from the things head. I consider this very well done, please continue with this quality.
F***** Nice. good job man, can u imagine what kinda of life can be there. Monsters, creatures, Big sea monsters under the water, traveling from a lake to another, some of them can be nice to us, someone is going to eat us. That life under ice in methane or coalhydrogen liquid, that would be itnteresting and cool and maybe little bit crazy. Imaginw... Think. Can u tell what size is that.
Yes, the oceans are mostly water but there are significant amounts of ammonia and methane dissolved in it. I should have said that underneath its crust Titan's oceans were ammonia-rich instead of saying it had ammonia oceans.
There isn't enough heating from radioactive decay and/or tidal flexing to keep an ocean similar to Earth's or Europa's liquid on Titan. The presence of ammonia lowers the melting point enough to keep it liquid as well as lowering the density enough to allow the mixture to erupt through the water ice crust during volcanic eruptions.