Oh, cool!

In the tropical Entre Rios where i was used to go in summer, would be invisible. Actually would be dangerous to use in the shore xD

Indeed. Looks good.

Not to detract at all from your paint job or anything similar, but I actually think your descriptors for certain elements are a bit off.

This actually appears to be a WW2 USN PT boat toy, originally - likely one of the later Elco designs. In that instance, you'd have a single barrel 40mm Bofors gun (potentially one borrowed from the Army, as PT boat crews were nearly as... acquisitive, shall we say, as submariners tended to be), one or two AN/M2 Browning .50 cal MGs up front, and the torpedoes on the side would likely be later model Mk 13/44 torpedoes, potentially with some of the hardware to improve their reliability when dropped from aircraft removed to maintain reliability when dumped over the side of a PT boat.

Thus, those wouldn't be AShMs - at the most modern, they'd be acoustic homing torpedoes configured with a minimum running depth to prevent them from coming back around and sinking the PT boat. The 40mm gun would be a single mount, because you can't really fit anything bigger on the boat (they're all of 80 - 100 ft [24.38 - 30.48 meters) long IRL, at least for later war designs), and odds are the MG would have a smaller gun-shield. Or, alternatively, it would instead be a 37mm M4 autocannon, and thus would have a sort of oval shaped "collar" magazine instead of a gun shield.

the torpedos should be torpedos...but have 5 exhausts at the end of each one instead a propeller x3

could be 2 12.7 mm machineguns, but are too big for that...

but yeah, almost sure is based in a ww2 PT boat x3

If there's something like an intake grill near the front of the torpedoes, along the sides of them, then it's possible they're using a pump-jet setup - I'm not 100% certain if actual torpedoes are using it, but it's not the worst idea ever.

Regarding the autocannons, it's possible then that the boat is armed with a pair of 20mm Oerlikon guns - unlike 40mm Bofors guns, twin-mounted Oerlikons are still light enough to not require power traverse and elevation, thus making Oerlikon twin mounts much lighter than Bofors guns. Admittedly, they're also a bit less hard hitting than a 40mm gun, but considering that the primary targets for a PT boats guns are other PT boats and aircraft, rather than enemy ships, it's not exactly a surprise.

"Yay lets attack a carrier alone!" XD

Yeah... even with how hard modern torpedoes hit, PT boats attacking a carrier are pretty much only going to actually sink it if they're deployed in groups - even discounting the fact that I have no idea how many torpedoes it takes to sink a modern carrier (although I wouldn't be surprised if the answer is actually "lots"), the PT boats wouldn't be able to close to torpedo range without getting detected unless the carrier was operating with no escorts and no combat air patrol. Or, in other words, unless random dumb luck decides to hand the PT boat captain(s) the win.

Cool

tomorrow should be tested in the sea x3