diff --git a/img/arch.jpg b/img/arch.jpg
index d00a5fe..d7defd0 100644
Binary files a/img/arch.jpg and b/img/arch.jpg differ
diff --git a/img/arcl1.jpg b/img/arcl1.jpg
index 7508fad..39f602a 100644
Binary files a/img/arcl1.jpg and b/img/arcl1.jpg differ
diff --git a/img/arcl2.jpg b/img/arcl2.jpg
index eeffee9..b542087 100644
Binary files a/img/arcl2.jpg and b/img/arcl2.jpg differ
diff --git a/img/arcl3.jpg b/img/arcl3.jpg
index abc99b1..997d41e 100644
Binary files a/img/arcl3.jpg and b/img/arcl3.jpg differ
diff --git a/img/arrows.jpg b/img/arrows.jpg
index 953c2d6..babcc23 100644
Binary files a/img/arrows.jpg and b/img/arrows.jpg differ