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That is a very strange brand of chess. Quite amusing I must say.

Good job!

The main drawback I see is that you gave up your bishop just after having played b3, so the a3-c8 diagonal is somehow weak, and Black still has his dark-squared bishop.

Just at first sight it seems to me that after castleing queen-side Black should be OK.

Greetings.

exf is wrong, gxf with open file for R and extra central pawn looks much better, just like in Bronstien Larson Variation of caro kann

RainbowRising is probably right. Further, 1.b3 Nf6 2.Bb2 g6 3.Bxf6!? and 1.b3 f5 2.Bb2 Nf6?! 3.Bxf6! are slightly better versions of 1.b3 Nf6 2.Bb2 Nc6!? 3. Bxf6!? Objectively speaking White’s best try should be 1.b3 Nf6 2.Bb2 Nc6!? 3. e3 e5 (3…d5!?) 4. c4 or 4.Bb5!?  but I played that 3.Bf6!? by “analogy” (and I still think it is playable). Finally, 1.b3 Nf6 2.Bb2 g6 3.Bxf6!? is given as a main line in the recent book play 1.b3!? by the Russian IM I. Odessky. Here is a recent example at super Grandmaster level with that 3.Bxf6!?           

in the line 10...0-0, can't black play 11...Ne5 immediately? I don't think 11...a6 is too great. (although your rating seems to disagree with me!)

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 10... O-O ! 11. Be2 Ne5 12. Nxe5 (12. d4 Nxf3+ 13. Bxf3 Bxf3 14. Qxf3 Qxf3 15. gxf3 =) 12...Bxe2 13. Qxe2 Qxe5 14. Qb5 is about level.

PS. I’m a bit bored of the opening lines you probably tried to learn. Further, I do like the original chess and such a chess (e.g. original and interesting) could be played at every level.   

Just one example at what means original chess at very strong Grandmaster level.

I don't think 2. Na3!? is really beyond the amateur mind, you just need to have the right experiences to figure out what white is trying to do with this move.

If you have ever played either the closed sicilian, c3 sicilian or that kind of weird rossolimo with a knight on c3 and bishop on b5 you can probably figure out some of the points behind the tricky 2. Na3!?

I would say that the main idea behind 2. Na3!? is to create a kind of improved closed sicilian also known as a "big clamp setup" which is very hard to achieve against the sicilian because black can very quickly strike in the center with d7-d5 which will lead to some problems for white.
However if you have ever played the closed sicilian you will probably know that the knight on c3 is often a real bother since it allows black to outpost a very annoying knight on d4 and the c3 knight can often be a target for attack when black starts hes play on the queenside and often white has to spend time manuevering that knight away from the silly c3 square. So naturally we would like to reach a closed sicilian with a pawn rather than knight on c3 which will both enable a possible expansion with d3-d4 and keep knights out of the d4 square. However the problem is that this kind of closed sicilian is very hard to reach in a good way because of possible d7-d5 ideas I mentioned earlier. Basically this 2. Na3!? move is an attempt to create this kind of closed sicilian and if black aims to play a quick d5 white can always respond with e4-e5 which leads to big clamp vs french positions.

The big clamp vs sicilian

 

 

 

 

 

 

 

 

 

 

 

 Big clamp vs french:

 

 

 

 

 

 

 

 

 

 

 

 

 

However that's not the only ideas white has behind the tricky 2. Na3!? basically you could describe this 2. Na3!? move as "an attempt to improve on other anti-sicilians", if black decides to play something passive white might very well switch into playing a kind of c3 sicilian where the knight on a3 is very usefully placed and even if you don't achieve d2-d4 the c3 move will always be useful in a big clamp formation. Also another idea which is demonstrated in zvagjinsev game is to improve on the 1. e4 c5 2. Nc3 Nc6 3. Bb5 line which is strongly met with 3...Nd4! but by having the knight on a3 this plan becomes less effective because...